Provided by: saods9_7.2+dfsg-4_amd64 bug

NAME

       ds9 - image tool for astronomy

SYNOPSIS

       ds9 [options]

DESCRIPTION

       DS9  DS9  is  the  modern image tool used by astronomers for visualization of astronomical
       data.  It supports a plethora of command line options, which may be used in a  script-like
       fashion.   An  instance  of the program is entirely controllable from the commandline with
       the XPA tools.

OPTIONS

       -2mass Support for 2MASS Digital Sky Survey.

           Syntax
                -2mass []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [survey j| h| k]
                [open| close]

           Example:

               ds9 -2mass

               ds9 -2mass m31

               ds9 -2mass name m31

               ds9 -2mass coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -2mass size 60 60 arcmin

               ds9 -2mass save yes

               ds9 -2mass frame current

               ds9 -2mass update frame

               ds9 -2mass survey j

               ds9 -2mass open

               ds9 -2mass close

       -3d    Support for 3D frame.

           Syntax
                -3d []
                [vp <az>  <el> ]
                [az <az> ]
                [el <el> ]
                [scale <scale> ]
                [method mip| aip]
                [border yes| no]
                [border color]
                [highlite yes| no]
                [highlite color]
                [open| close]

           Example:

               ds9 -3d # create new 3D frame

               ds9 -3d vp 45 30

               ds9 -3d az 45

               ds9 -3d el 30

               ds9 -3d scale 10

               ds9 -3d method mip

               ds9 -3d border yes

               ds9 -3d border color red

               ds9 -3d highlite yes

               ds9 -3d highlite color red

               ds9 -3d open

               ds9 -3d close

       -about Get DS9 credits.

           Syntax
                -about

           Example:

               ds9 -about

       -align Controls the World Coordinate System alignment for the current frame.

           Syntax
                -align [yes| no]

           Example:

               ds9 -align yes

       -analysis
              Control external analysis tasks. Tasks are numbered as they are
               loaded,  starting with 0. Can also be used to display a message and
               display text in the text dialog window.

           Syntax
                -analysis [<task number> ]
                [<filename> ]
                [task <task number> | <task name> ]
                [load <filename> ]
                [clear]
                [clear] [load <filename> ]
                [message ok| okcancel| yesno <message> ]
                [entry <message> ]
                [text]

           Example:

               ds9 -analysis 0 # invoke first analysis task

               ds9 -analysis task 0

               ds9 -analysis task foobar

               ds9 -analysis task "{foo bar}"

               ds9 -analysis my.ans

               ds9 -analysis load my.ans

               ds9 -analysis clear

               ds9 -analysis clear load my.ans

               ds9 -analysis message '{This is a message}'

               ds9 -analysis message okcancel '{This is a message}'

               ds9 -analysis text '{This is text}';

       -array Load an array.

           Syntax
                -array <filename>
                [xdim=<x> , ydim=<y> | dim=<dim> ] , zdim=<z> , bitpix=<b> , skip=<s> , arch=
                [little| big] ]

           Example:

               ds9 -array bar.arr[xdim=512, ydim=512, zdim=1, bitpix=16]  # load
                512x512 short
                $cat bar.arr |  ds9 -array -[xdim=512, ydim=512, zdim=1, bitpix=16]

               ds9 -array bar.arr[dim=256, bitpix=-32, skip=4]  # load 256x256 float
                with 4 byte head

               ds9 -array bar.arr[dim=512, bitpix=32, arch=little]  # load 512x512
                long,  intel

       -asinh Select ASINH scale function for the current frame.

           Syntax
                -asinh

           Example:

               ds9 -asinh
                bg

       -background
              Set image background color.

           Syntax
                -bg <color>

           Example:

               ds9 -background red

               ds9 -bg red

       -backup
              Create a backup save set.

           Syntax
                -backup <filename>

           Example:

               ds9 -backup ds9.bck

       -bin   Controls binning factor,  binning buffer size,  and binning function
               for binning FITS bin tables.

           Syntax
                -bin [about <x>  <y> ]
                [about center]
                [buffersize <value> ]
                [cols <x>  <y> ]
                [colsz <x>  <y>  <z> ]
                [factor <value>  [<value> ] ]
                [depth <value> ]
                [filter <string> ]
                [function average| sum]
                [to fit]
                [match]
                [lock [yes| no] ]
                [open| close]

           Example:

               ds9 -bin about 4096 4096

               ds9 -bin about center

               ds9 -bin buffersize 512

               ds9 -bin cols detx dety

               ds9 -bin colsz detx dety time

               ds9 -bin factor 4

               ds9 -bin factor 4 2

               ds9 -bin depth 10

               ds9 -bin filter '{pha >  5}'

               ds9 -bin filter ''

               ds9 -bin function sum

               ds9 -bin to fit

               ds9 -bin match

               ds9 -bin lock yes

               ds9 -bin open

               ds9 -bin close

       -blink Blink mode parameters. Interval is in seconds.

           Syntax
                -blink []
                [yes| no]
                [interval <value> ]

           Example:

               ds9 -blink

               ds9 -blink yes

               ds9 -blink interval 1

       -blue  For RGB frames,  sets the current color channel to blue.

           Syntax
                -blue

           Example:

               ds9 -blue foo.fits

       -catalog
              cat
               Support for catalogs.

           Syntax
                -catalog []
                [ned| simbad| denis| skybot]

                [ascss| cmc| gsc1| gsc2| gsc3| ac| nomad| ppmx| sao| sdss5| sdss6| sdss7|  sdss8|
               tycho| ua2| ub1| ucac2]
                [2mass| iras]
                [csc| xmm| rosat]
                [first| nvss]
                [chandralog| cfhtlog| esolog| stlog| xmmlog]
                [cds <catalogname> ]
                [cds <catalogid> ]
                [load <filename> ]
                [import sb| tsv <filename> ]
                [<ref> ]  [allcols]
                [<ref> ]  [allrows]
                [<ref> ]  [cancel]
                [<ref> ]  [clear]
                [<ref> ]  [close]
                [<ref> ]  [coordinate <ra>  <dec>  <coordsys> ]
                [<ref> ]  [crosshair]
                [<ref> ]  [dec <col> ]
                [<ref> ]  [edit yes| no]
                [<ref> ]  [export sb| tsv <filename> ]
                [<ref> ]  [filter <string> ]
                [<ref> ]  [filter load <filename> ]
                [<ref> ]  [header]
                [<ref> ]  [hide]
                [<ref> ]  [location <code> ]
                [<ref> ]  [match <ref>  <ref> ]
                [<ref> ]  [match error <value>  degrees| arcmin| arcsec]
                [<ref> ]  [match function 1and2| 1not2| 2not1]
                [<ref> ]  [match return 1and2| 1only| 2only]
                [<ref> ]  [match unique yes| no]
                [<ref> ]  [maxrows <number> ]
                [<ref> ]  [name <object> ]
                [<ref> ]  [panto yes| no]
                [<ref> ]  [plot <xcol>  <ycol>  <xerrcol>  <yerrcol> ]
                [<ref> ]  [print]
                [<ref> ]  [psky <skyframe> ]
                [<ref> ]  [psystem <coordsys> ]
                [<ref> ]  [ra <col> ]
                [<ref> ]  [retrieve]
                [<ref> ]  [samp]
                [<ref> ]  [samp broadcast]
                [<ref> ]  [samp send <application> ]
                [<ref> ]  [save <filename> ]
                [<ref> ]  [server

       -cd    Sets the current working directory.

           Syntax
                cd [<directory> ]

           Example:

               ds9 -cd /home/mrbill

       -cmap  Controls the colormap for the current frame. The colormap name is not
               case sensitive. A valid contrast value is from 0 to 10 and bias
               value from 0 to 1.

           Syntax
                -cmap [<colormap> ]
                [file]
                [load <filename> ]
                [save <filename> ]
                [invert yes| no]
                [value <contrast>  <bias> ]
                [tag [load| save]  <filename> ]
                [tag delete]
                [match]
                [lock [yes| no] ]
                [open| close]

           Example:

               ds9 -cmap Heat

               ds9 -cmap load foo.sao

               ds9 -cmap save bar.sao

               ds9 -cmap invert yes

               ds9 -cmap value 5 .5

               ds9 -cmap tag load foo.tag

               ds9 -cmap tag save foo.tag

               ds9 -cmap tag delete

               ds9 -cmap match

               ds9 -cmap lock yes

               ds9 -cmap open

               ds9 -cmap close

       -colorbar
              Controls colorbar parameters.

           Syntax
                -colorbar []
                [yes| no]
                [horizontal| vertical]
                [orientation horizontal| vertical]
                [numerics yes| no]
                [space value| distance]
                [font times| helvetica| courier]
                [fontsize <value> ]
                [fontweight normal| bold]
                [fontslant roman| italic]
                [size]
                [ticks]

           Example:

               ds9 -colorbar yes

               ds9 -colorbar vertical

               ds9 -colorbar orientation vertical

               ds9 -colorbar numerics yes

               ds9 -colorbar space value

               ds9 -colorbar font times

               ds9 -colorbar fontsize 14

               ds9 -colorbar fontweight bold

               ds9 -colorbar fontslant italic

               ds9 -colorbar size 20

               ds9 -colorbar ticks 11

       -console
              Display tcl console window.

           Syntax
                -console

           Example:

               ds9 -console

       -contour
              Controls contours in the current frame.

           Syntax
                -contour []
                [yes| no]
                [clear]
                [generate]
                [load <filename>  <coordsys>  <skyframe>  <color>  <width>
                yes| no]
                [save <filename>  <coordsys>  <skyframe> ]
                [convert]
                [loadlevels <filename> ]
                [savelevels <filename> ]
                [copy]
                [paste <coordsys>  <color>  <width>  yes| no]
                [color <color> ]
                [width <width> ]
                [dash yes| no]
                [smooth <smooth> ]
                [method block| smooth]
                [nlevels <number of levels> ]
                [scale linear| log| pow| squared| sqrt| asinh| sinh| histequ]
                [log exp <value> ]
                [mode minmax| <value> | zscale| zmax]
                [limits <min>  <max> ]
                [levels <value value value...> ]
                [open| close]

           Example:

               ds9 -contour

               ds9 -contour yes

               ds9 -contour generate

               ds9 -contour clear

               ds9 -contour load ds9.con wcs fk5 yellow 2 no

               ds9 -contour load ds9.con wcs fk5 red 2 yes

               ds9 -contour save ds9.con wcs fk5

               ds9 -contour convert

               ds9 -contour loadlevels ds9.lev

               ds9 -contour savelevels ds9.lev

               ds9 -contour copy

               ds9 -contour paste wcs red 2 no

               ds9 -contour color yellow

               ds9 -contour width 2

               ds9 -contour dash yes

               ds9 -contour smooth 5

               ds9 -contour method smooth

               ds9 -contour nlevels 10

               ds9 -contour scale sqrt

               ds9 -contour log exp 1000

               ds9 -contour mode zscale

               ds9 -contour limits 1 100

               ds9 -contour levels "1 10 100 1000"

               ds9 -contour open

               ds9 -contour close

       -crop  Set current image display area.

           Syntax
                -crop [<x>  <y>  <width>  <height>  [<coordsys> ] [<skyframe> ] [<skyformat> ]
                [degrees| arcmin| arcsec]
                [match <coordsys> ]
                [lock <coordsys> | none]

           Example:

               ds9 foo.fits -crop 40 30 10 20 # set crop in physical coords

               ds9 foo.fits -crop +104:51:06.915 +68:33:40.761 28.144405 22.000204

       -crosshair
              Controls the current position of the crosshair in the current frame.
               DS9 is placed in crosshair mode when the crosshair is set.

           Syntax
                -crosshair [<x>  <h>  <coordsys>  [<skyframe> ] [<skyformat> ] ]
                [match <coordsys> ]
                [lock <coordsys> | none]

           Example:

               ds9 -crosshair 100 100 physical # set crosshair in physical

               ds9 -crosshair 345 58.8 wcs fk5 # set crosshair in wcs coords

               ds9 -crosshair 23:01:00 +58:52:51 wcs fk5

               ds9 -crosshair match

               ds9 -crosshair lock wcs

       -cube  Controls FITS cube.

           Syntax
                -cube [play| stop| next| prev| first| last]
                [<slice>  [<coordsys> ] [<axis> ] ]
                [interval <numeric> ]
                [axis <axis> ]
                [match]
                [lock [yes| no] ]
                [open| close]

           Example:

               ds9 -cube play

               ds9 -cube last

               ds9 -cube 3

               ds9 -cube 4.5 wcs 3

               ds9 -cube interval 2

               ds9 -cube axis 3

               ds9 -cube match

               ds9 -cube lock yes

               ds9 -cube open

               ds9 -cube close

       -cursor
              Move mouse pointer or crosshair in image pixels in the current frame.
               Note,  this will move selected Regions also.

           Syntax
                -cursor [<x>  <h> ]

           Example:

               ds9 -cursor 10 10

       -dsssao
              dss
               Support for Digital Sky Survey at SAO.

           Syntax
                -dsssao []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [open| close]

           Example:

               ds9 -dsssao

               ds9 -dsssao m31

               ds9 -dsssao name m31

               ds9 -dsssao coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -dsssao size 60 60 arcmin

               ds9 -dsssao save yes

               ds9 -dsssao frame current

               ds9 -dsssao update frame

               ds9 -dsssao open

               ds9 -dsssao close

       -dsseso
              Support for Digital Sky Survey at ESO.

           Syntax
                -dsseso []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [survey DSS1| DSS2-red| DSS2-blue| DSS2-infrared]
                [open| close]

           Example:

               ds9 -dsseso

               ds9 -dsseso m31

               ds9 -dsseso name m31

               ds9 -dsseso coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -dsseso size 60 60 arcmin

               ds9 -dsseso save yes

               ds9 -dsseso frame current

               ds9 -dsseso update frame

               ds9 -dsseso survey DSS2-red

               ds9 -dsseso open

               ds9 -dsseso close

       -dssstsci
              Support for Digital Sky Survey at STSCI.

           Syntax
                -dssstsci []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [survey poss2ukstu_red| poss2ukstu_ir| poss2ukstu_blue]
                [survey poss1_blue| poss1_red]
                [survey all| quickv| phase2_gsc2| phase2_gsc1]
                [open| close]

           Example:

               ds9 -dssstsci

               ds9 -dssstsci m31

               ds9 -dssstsci name m31

               ds9 -dssstsci coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -dssstsci size 60 60 arcmin

               ds9 -dssstsci save yes

               ds9 -dssstsci frame current

               ds9 -dssstsci update frame

               ds9 -dssstsci survey all

               ds9 -dssstsci open

               ds9 -dssstsci close

       -exit  quit
               Quits DS9.

           Syntax
                -exit
                -quit

           Example:

               ds9 -exit

       -export
              Export loaded image data of current frame in specified image format,
               at native resolution,  using current colormap and contrast/bias
               settings. NOTE: not scaling,  rotation,  or translation is applied. If
               no format specified,  the file name extension is used to determine the
               output format. Optional parameters: jpeg quality (1-100) and tiff
               compression method.

           Syntax
                -export [nrrd| gif| tiff| jpeg| png]  <filename>
                -export <filename> .jpeg [1-100]
                -export <filename> .tiff [none| jpeg| packbits| deflate]

           Example:

               ds9 -export foo.tiff

               ds9 -export tiff foo.tiff

               ds9 -export foo.jpeg 75

               ds9 -export png foo.png

       -fifo  Set the name of the IRAF input and output fifos. The default is /dev/
               imt1. These fifos are used by IRAF to communicate with DS9.

           Syntax
                -fifo name

           Example:

               ds9 -fifo /dev/imt1

       -fifo_only

       -first Support for VLA First Sky Survey.

           Syntax
                -first []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [open| close]

           Example:

               ds9 -first

               ds9 -first m31

               ds9 -first name m31

               ds9 -first coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -first size 60 60 arcmin

               ds9 -first save yes

               ds9 -first frame current

               ds9 -first update frame

               ds9 -first open

               ds9 -first close

       -fits  Load a FITS image into the current frame.

           Syntax
                -fits<filename>

           Example:

               ds9 -fits foo.fits

               ds9 -fits bar.fits[bin=detx, dety]
                $cat foo.fits |  ds9 -fits -
                $cat bar.fits |  ds9 -fits -[bin=detx, dety]

       -frame Controls frame functions. Frames may be created,  deleted,  reset,  and
               centered. While return the current frame number. If you goto a frame
               that does not exists,  it will be created. If the frame is hidden,  it
               will be shown. The 'frameno' option is available for backward
               compatibility.

           Syntax
                -frame [center [#| all] ]
                [clear [#| all] ]
                [new [rgb] ]
                [delete [#| all] ]
                [reset [#| all] ]
                [refresh [#| all] ]
                [hide [#| all] ]
                [show [#| all] ]
                [move first]
                [move back]
                [move forward]
                [move last]
                [first]
                [prev]
                [next]
                [last]
                [frameno #]
                [#]
                [match <coordsys> ]
                [lock <coordsys> | none]

           Example:

               ds9 -frame center # center current frame

               ds9 -frame center 1 # center 'Frame1'

               ds9 -frame center all # center all frames

               ds9 -frame clear # clear current frame

               ds9 -frame new # create new frame

               ds9 -frame new rgb # create new rgb frame

               ds9 -frame delete # delete current frame

               ds9 -frame reset # reset current frame

               ds9 -frame refresh # refresh current frame

               ds9 -frame hide # hide current frame

               ds9 -frame show 1 # show frame 'Frame1'

               ds9 -frame move first # move frame to first in order

               ds9 -frame move back # move frame back in order

               ds9 -frame move forward # move frame forward in order

               ds9 -frame move last # move frame to last in order

               ds9 -frame first # goto first frame

               ds9 -frame prev # goto prev frame

               ds9 -frame next # goto next frame

               ds9 -frame last # goto last frame

               ds9 -frame frameno 4 # goto frame 'Frame4',  create if needed

               ds9 -frame 3 # goto frame 'Frame3',  create if needed

               ds9 -frame lock wcs

       -geometry
              Define the initial window geometry. This includes all of the ds9
               window,  not just the image space. see X(1).

           Syntax
                -geometry value

           Example:

               ds9 -geometry 640x480

       -gif   Import gif file.

           Syntax
                -gif <filename>

           Example:

               ds9 -gif foo.gif
                $cat foo.gif |  ds9 -gif -

       -green For RGB frames,  sets the current color channel to green.

           Syntax
                -green

           Example:

               ds9 -green foo.fits

       -grid  Controls coordinate grid. For grid numeric format syntax,  click
               here.

           Syntax
                -grid []
                [yes| no]
                [type analysis| publication]
                [system <coordsys> ]
                [sky <skyframe> ]
                [skyformat <skyformat> ]
                [grid yes| no]
                [grid color <color> ]
                [grid width <value> ]
                [grid style 0| 1]
                [grid gap1 <value> ]
                [grid gap2 <value> ]
                [axes yes| no]
                [axes color <color> ]
                [axes width <value> ]
                [axes style 0| 1]
                [axes type interior| exterior]
                [axes origin lll| llu| lul| luu| ull| ulu| uul| uuu]
                [format1 <format> ]
                [format2 <format> ]
                [tickmarks yes| no]
                [tickmarks color <color> ]
                [tickmarks width <value> ]
                [tickmarks style 0| 1]
                [border yes| no]
                [border color <color> ]
                [border width <value> ]
                [border style 0| 1]
                [numerics yes| no]
                [numerics font times| helvetica| courier]
                [numerics fontsize <value> ]
                [numerics fontweight normal| bold]
                [numerics fontslant roman| italic]
                [numerics color <color> ]
                [numerics gap1 <value> ]
                [numerics gap2 <value> ]
                [numerics type interior| exterior]
                [numerics vertical yes| no]
                [title yes| no]
                [title text <text> ]
                [title def yes| no]
                [title gap <value> ]
                [title font times| helvetica| courier]
                [title fontsize <value> ]
                [title fontweight normal| bold]
                [title fontslant roman| italic]
                [title color <color> ]
                [labels yes| no]
                [labels text1 <text> ]
                [labels def1 yes| no]
                [labels gap1 <value> ]
                [labels text2 <text> ]
                [labels def2 yes| no]
                [labels gap2 <value> ]
                [labels font times| helvetica| courier]
                [labels fontsize <value> ]
                [labels fontweight normal| bold]
                [labels fontslant roman| italic]
                [labels color <color> ]
                [reset]
                [load <filename> ]
                [save <filename> ]
                [open| close]

           Example:

               ds9 -grid

               ds9 -grid yes

               ds9 -grid type analysis

               ds9 -grid system wcs

               ds9 -grid sky fk5

               ds9 -grid skyformat degrees

               ds9 -grid grid yes

               ds9 -grid grid color red

               ds9 -grid grid width 2

               ds9 -grid grid style 1

               ds9 -grid grid gap1 10

               ds9 -grid grid gap2 10

               ds9 -grid axes yes

               ds9 -grid axes color red

               ds9 -grid axes width 2

               ds9 -grid axes style 1

               ds9 -grid axes type exterior

               ds9 -grid axes origin lll

               ds9 -grid format1 d.2

               ds9 -grid format2 d.2

               ds9 -grid tickmarks yes

               ds9 -grid tickmarks color red

               ds9 -grid tickmarks width 2

               ds9 -grid tickmarks style 1

               ds9 -grid border yes

               ds9 -grid border color red

               ds9 -grid border width 2

               ds9 -grid border style 1

               ds9 -grid numerics yes

               ds9 -grid numerics font courier

               ds9 -grid numerics fontsize 12

               ds9 -grid numerics fontweight bold

               ds9 -grid numerics fontslant italic

               ds9 -grid numerics color red

               ds9 -grid numerics gap1 10

               ds9 -grid numerics gap2 10

               ds9 -grid numerics type exterior

               ds9 -grid numerics vertical yes

               ds9 -grid title yes

               ds9 -grid title text {Hello World}

               ds9 -grid title def yes

               ds9 -grid title gap 10

               ds9 -grid title font courier

               ds9 -grid title fontsize 12

               ds9 -grid title fontweight bold

               ds9 -grid title fontslant italic

               ds9 -grid title color red

               ds9 -grid labels yes

               ds9 -grid labels text1 {Hello World}

               ds9 -grid labels def1 yes

               ds9 -grid labels gap1 10

               ds9 -grid labels text2 {Hello World}

               ds9 -grid labels def2 yes

               ds9 -grid labels gap2 10

               ds9 -grid labels font courier

               ds9 -grid labels fontsize 12

               ds9 -grid labels fontweight bold

               ds9 -grid labels fontslant italic

               ds9 -grid labels color red

               ds9 -grid reset

               ds9 -grid load foo.grd

               ds9 -grid save foo.grd

               ds9 -grid open

               ds9 -grid close

       -header
              Display current fits header dialog. Optional extension number maybe
               specified.

           Syntax
                -header [<ext> ]
                [close [<ext> ] ]
                [save [<ext> ]  <filename> ]

           Example:

               ds9 -header

               ds9 -header 2

               ds9 -header close

               ds9 -header save 1 foo.txt

       -height
              Set the height of the image display window. Use the geometry command
               to set the overall width and height of the ds9 window.

           Syntax
                -height [<value> ]

           Example:

               ds9 -height 512

       -help  Display help information. To maintain backward compatibility,  -help
               will display a brief help message and exit. --help will display all
               command line options within the built-in help facility.

           Syntax
                -help # Display brief help message and exit.
                --help # Display command line options within help facility.
                -? # Display command line options within help facility.

           Example:

               ds9 -help # Display brief help message and exit.

               ds9 --help # Display command line options within help facility

               ds9 -? # Display command line options within help facility.

       -histequ
              Select histogram equalization scale function for the current frame.

           Syntax
                -histequ

           Example:

               ds9 -histequ

       -iconify
              Toggles iconification.

           Syntax
                -iconify []
                [yes| no]

           Example:

               ds9 -iconify

               ds9 -iconify yes

       -inet_only
              Only use the IRAF port number. This is the same as -fifo none -unix
               none.

           Syntax
                -port_only

           Example:

               ds9 -port_only

       -invert
              Invert Colormap.

           Syntax
                -invert

           Example:

               ds9 -invert

       -iis   Set IIS Filename. Optional mosaic number maybe supplied.

           Syntax
                -iis [filename <filename>  [#] ]

           Example:

               ds9 -iis filename foo.fits

               ds9 -iis filename bar.fits 4

       -jpeg  Load JPEG image into current frame.

           Syntax
                -jpeg <filename>

           Example:

               ds9 -jpeg foo.jpeg
                $cat foo.jpeg |  ds9 -jpeg -

       -language
              Select current language.

           Syntax
                -language [locale| da| de| es| en| fr| ja| pt]

           Example:

               ds9 -language fr

       -linear
              Select linear scale function for the current frame.

           Syntax
                -linear

           Example:

               ds9 -linear

       -lock  Lock all other frames to the current frame.

           Syntax
                -lock[frame <coordsys> | none]
                [crosshair <coordsys> | none]
                [crop <coordsys> | none]
                [slice [yes| no] ]
                [bin [yes| no] ]
                [scale [yes| no] ]
                [colorbar [yes| no]
                [smooth [yes| no] ]

           Example:

               ds9 -lock frame wcs

               ds9 -lock crosshair wcs

               ds9 -lock crop wcs

               ds9 -lock slice yes

               ds9 -lock bin yes

               ds9 -lock scale yes

               ds9 -lock colorbar yes

               ds9 -lock smooth yes

       -log   Select log scale function for the current frame.

           Syntax
                -log

           Example:

               ds9 -log

       -lower Lower in the window stacking order.

           Syntax
                -lower

           Example:

               ds9 -lower

       -magnifier
              Controls the magnifier settings.

           Syntax
                magnifier [color <color> ]
                [zoom <value> ]
                [cursor yes| no]
                [region yes| no]

           Example:

               ds9 -magnifier color yellow

               ds9 -magnifier zoom 2

               ds9 -magnifier cursor no

               ds9 -magnifier region no

       -mask  nomask
               Controls mask parameters.

           Syntax
                -mask [color <color> ]
                [mark 1| 0]
                [transparency <value> ]
                [clear]
                [open| close]
                -nomask

           Example:

               ds9 -mask color red

               ds9 -mask mark 0

               ds9 -mask transparency 50

               ds9 -mask clear

               ds9 -mask open

               ds9 -mask close

               ds9 -nomask

       -match Match all other frames to the current frame.

           Syntax
                -match[frame <coordsys> ]
                [crosshair <coordsys> ]
                [crop <coordsys> ]
                [slice]
                [bin]
                [scale]
                [colorbar]
                [smooth]

           Example:

               ds9 -match frame wcs

               ds9 -match crosshair wcs

               ds9 -match crop wcs

               ds9 -match slice

               ds9 -match bin

               ds9 -match scale

               ds9 -match colorbar

               ds9 -match smooth

       -mecube
              Load FITS multiple extension file as data cube.

           Syntax
                mecube <filename>

           Example:

               ds9 -mecube foo.fits
                $cat foo.fits |  ds9 -mecube -

       -minmax
              This is how DS9 determines the min and max data values from the
               data. SCAN will scan all data. SAMPLE will sample the data every n

       -mode  Select the current mode.

           Syntax
                -mode
                [none| pointer| crosshair| colorbar| pan| zoom| rotate| catalog| examine]

           Example:

               ds9 -mode crosshair

       -mosaic
              Load FITS mosaic segment into current frame.

           Syntax
                -mosaic [wcs| wcsa...wcsz| iraf]  <filename>

           Example:

               ds9 -mosaic foo.fits

               ds9 -mosaic wcs foo.fits
                $cat foo.fits |  ds9 -mosaic -
                $cat foo.fits |  ds9 -mosaic wcs -

       -mosaicimage

       -movie

       -msg   Specify a directory of translation tables to be loaded.

           Syntax
                -msg <directory>

           Example:

               ds9 -msg $HOME/msgs

       -multiframe
              Load FITS multiple extension file as multiple images.

           Syntax
                multiframe <filename>

           Example:

               ds9 -multiframe foo.fits
                $cat foo.fits |  ds9 -multiframe -

       -nameserver
              Support Name Server functions. Coordinates are in fk5.

           Syntax
                -nameserver [<object> ]
                [name <object> ]
                [server ned-sao| ned-eso| simbad-sao| simbad-eso]
                [skyformat degrees| sexagesimal]
                [pan]
                [crosshair]
                [open| close]

           Example:

               ds9 -nameserver m31

               ds9 -nameserver name m31

               ds9 -nameserver server ned-sao

               ds9 -nameserver skyformat sexagesimal

               ds9 -nameserver pan

               ds9 -nameserver crosshair

               ds9 -nameserver open

               ds9 -nameserver close

       -nan   Set image not-a-number color.

           Syntax
                -nan <color>

           Example:

               ds9 -nan red

       -nrrd  Load an NRRD (Nearly Raw Raster Data) file.

           Syntax
                -nrrd <filename>

           Example:

               ds9 -nrrd foo.nrrd
                $cat foo.nrrd |  xpaset ds9 -nrrd -

       -nvss  Support for NRAO VLA Sky Survey.

           Syntax
                -nvss []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [open| close]

           Example:

               ds9 -nvss

               ds9 -nvss m31

               ds9 -nvss name m31

               ds9 -nvss coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -nvss size 60 60 arcmin

               ds9 -nvss save yes

               ds9 -nvss frame current

               ds9 -nvss update frame

               ds9 -nvss open

               ds9 -nvess close

       -orient
              Controls the orientation of the current frame.

           Syntax
                -orient [none| x| y| xy]
                [open| close]

           Example:

               ds9 -orient xy

               ds9 -orient open

               ds9 -orient close

       -pagesetup
              Controls Page Setup options.

           Syntax
                -pagesetup [orient portrait| landscape]
                [scale <numberic> ]
                [size letter| legal| tabloid| poster| a4]

           Example:

               ds9 -pagesetup orient portrait

               ds9 -pagesetup scale 50

               ds9 -pagesetup size poster

       -pan   Controls the current image cursor location for the current frame.

           Syntax
                -pan [<x>  <h>  <coordsys>  [<skyframe> ] [<skyformat> ]
                [to <x>  <h>  <coordsys>  [<skyframe> ] [<skyformat> ]
                [open| close]

           Example:

               ds9 -pan 200 200 image

               ds9 -pan to 400 400 physical

               ds9 -pan to 13:29:55 47:11:50 wcs fk5

               ds9 -pan open

               ds9 -pan close

       -pixeltable
              Display/Hide the pixel table.

           Syntax
                -pixeltable []
                [yes| open]
                [no| close]

           Example:

               ds9 -pixeltable

               ds9 -pixeltable yes

               ds9 -pixeltable open

               ds9 -pixeltable close

       -plot  Display and configure data plots. All plot commands take an optional
               second command,  the plot name. Use xpaget plot to retrieve all plot
               names. If no plot name is specified,  the last plot created is
               assumed. Plot data is assumed to be a pair of coordinates,  with
               optional error values. The follow are valid data descriptions:
               xy x and y coordinates
               xyex x, y coordinates with x errors
               xyey x, y coordinates with y errors
               xyexey x, y coordinates with both x and y errors
               To create a new plot,  use the plot new command. If the second arg is
               stdin,  the title,  x axis title,  y axis title,  and dimension are
               assumed to be on the first line of the data.

           Syntax
                # create new empty plot window
                -plot [bar| scatter]
                [new [name <plotname> ]  [line| bar| scatter] ]
                [new [name <plotname> ] [line| bar| scatter] <title>  <xaxis label>
                <yaxis label> xy| xyex| xyey| xyexey]
                # edit existing plot
                -plot [<plotname> ]  [close]
                [<plotname> ]  [clear]
                [<plotname> ]  [load <filename>  xy| xyex| xyey| xyexey]
                [<plotname> ]  [save <filename> ]
                [<plotname> ]  [loadconfig <filename> ]
                [<plotname> ]  [saveconfig <filename> ]
                [<plotname> ]  [print]
                [<plotname> ]  [print destination printer| file]
                [<plotname> ]  [print command <command> ]
                [<plotname> ]  [print filename <filename> ]
                [<plotname> ]  [print color rgb| gray]
                [<plotname> ]  [pagesetup orient portrait| landscape]
                [<plotname> ]  [pagesetup size letter| legal| tabloid| poster| a4]
                [<plotname> ]  [graph type line| bar]
                [<plotname> ]  [graph grid x| y yes| no]
                [<plotname> ]  [graph log x| y yes| no]
                [<plotname> ]  [graph flip x| y yes| no]
                [<plotname> ]  [graph range x| y auto yes| no]
                [<plotname> ]  [graph range x| y min <value> ]
                [<plotname> ]  [graph range x| y max <value> ]
                [<plotname> ]  [graph format x| y <value> ]
                [<plotname> ]  [graph labels title| xaxis| yaxis <value> ]
                [<plotname> ]  [font numbers| labels| title font
                times| helvetica| courier]
                [<plotname> ]  [font numbers| labels| title size <value> ]
                [<plotname> ]  [font numbers| labels| title weight normal| bold]
                [<plotname> ]  [font nubmers| labels| title slant roman| italic]
                # edit current dataset
                -plot [<plotname> ]  [dataset #]
                [<plotname> ]  [view discrete| linear| step| quadratic| error yes| no]
                [<plotname> ]  [color discrete| linear| step| quadratic| error| bar
                <color> ]
                [<plotname> ]  [line discrete circle| diamond| plus| cross]
                [<plotname> ]  [line linear| step| quadratic| error width <value> ]
                [<plotname> ]  [line linear| step| quadratic dash yes| no]
                [<plotname> ]  [line error style 1| 2]

           Example:
                # create new empty plot window

               ds9 -plot

               ds9 -plot scatter

               ds9 -plot new

               ds9 -plot new bar

               ds9 -plot new name foo

               ds9 -plot new name foo scatter
                # edit existing plot

               ds9 -plot close # close last plot

               ds9 -plot foo close # close plot foo

               ds9 -plot clear # clear all datasets

               ds9 -plot load foo.dat xy # load new dataset with dimension xy

               ds9 -plot save bar.dat # save current dataset

               ds9 -plot loadconfig foo.plt # load plot configuration

               ds9 -plot saveconfig bar.plt # save current plot configuration

               ds9 -plot print

               ds9 -plot print destination file

               ds9 -plot print command "lp"

               ds9 -plot print filename "foo.ps"

               ds9 -plot print color gray

               ds9 -plot pagesetup orient portrait

               ds9 -plot pagesetup size letter

               ds9 -plot graph grid x yes

               ds9 -plot graph log x yes

               ds9 -plot graph flip x yes

               ds9 -plot graph range x auto yes

               ds9 -plot graph range x min 0

               ds9 -plot graph range x max 100

               ds9 -plot graph range y auto yes

               ds9 -plot graph range y min 0

               ds9 -plot graph range y max 100

               ds9-plot graph format y %e

               ds9 -plot graph labels title {The Title}

               ds9 -plot graph labels xaxis {X}

               ds9 -plot graph labels yaxis {Y}

               ds9 -plot font numbers font times

               ds9 -plot font numbers size 12

               ds9 -plot font numbers weight bold

               ds9 -plot font numbers slant italic

               ds9 -plot font labels font times

               ds9 -plot font title font times
                # edit current dataset

               ds9 -plot dataset 2 # set current dataset to the second dataset
                loaded

               ds9 -plot view discrete yes

               ds9 -plot color discrete red

               ds9 -plot line discrete cross

               ds9 -plot line step width 2

               ds9 -plot line step dash yes

               ds9 -plot line error style 2

       -png   Load PNG image into current frame.

           Syntax
                -png <filename>

           Example:

               ds9 png foo.png
                $cat foo.png |  ds9 -png -

       -prefs Controls various preference settings.

           Syntax
                -prefs clear

           Example:

               ds9 -prefs clear

       -preserve
              Preserve the follow attributes while loading a new image.

           Syntax
                preserve [scale yes| no]
                [pan yes| no]
                [regions yes| no]

           Example:

               ds9 -preserve scale yes

               ds9 -preserve pan yes

               ds9 -preserve regions yes

       -psprint
              For MacOSX and Windows,  invokes postscript printing. For all others,
               same as print. Please see print for further details.

       -print Controls printing. Use print option to set printing options. Use
               print to actually print.

           Syntax
                -print [destination printer| file]
                [command <command> ]
                [filename <filename> ]
                [color rgb| cmyk| gray]
                [level 1| 2]
                [resolution 53| 72| 75| 150| 300| 600]

           Example:

               ds9 -print

               ds9 -print destination file

               ds9 -print command 'gv -'

               ds9 -print filename foo.ps

               ds9 -print color cmyk

               ds9 -print level 2

               ds9 -print resolution 75

       -private
              use private colormap,  valid for pseudocolor 8 mode.

           Syntax
                -private

           Example:

               ds9 -private

       -port  Set the IRAF port number,  used by IRAF to communicate with DS9. The
               default is 5137,  the standard IRAF port used by ximtool.

           Syntax
                -port number

           Example:

               ds9 -port 5137

       -port_only

       -pow   Select power scale function for the current frame.

           Syntax
                -pow

           Example:

               ds9 -pow

       -exit  quit
               Quits DS9.

           Syntax
                -exit
                -quit

           Example:

               ds9 -exit

       -raise Raise in the window stacking order.

           Syntax
                -raise

           Example:

               ds9 -raise

       -regions
              Controls regions in the current frame.

           Syntax
                -regions [<filename> ]
                [load [all]  <filename> ]
                [save <filename> ]
                [list [close] ]
                [show yes| no]
                [showtext yes| no]
                [centroid]
                [centroid auto yes| no]
                [centroid radius <value> | iteration <value> ]
                [getinfo]
                [move front]
                [move back]
                [select all]
                [select none]
                [select invert]
                [delete all]
                [delete select]
                [format ds9| xml| ciao| saotng| saoimage| pros| xy]
                [system image| physical| wcs| wcsa...wcsz]
                [sky fk4| fk5| icrs| galactic| ecliptic]
                [skyformat degrees| sexagesimal]
                [strip yes| no]
                [shape <shape> ]
                [color <color>
                [width <width> ]
                [fixed| edit| rotate| delete yes| no]
                [include| exclude| source| background]
                [delim [nl| <char> ] ]
                [command <marker command> ]
                [composite]
                [dissolve]
                [template <filename> ]
                [template <filename>  at <ra>  <dec>  <coordsys>  <skyframe> ]
                [savetemplate <filename> ]
                [group new]
                [group <tag>  new]
                [group <tag>  update]
                [group <tag>  select]
                [group <tag>  color <color> ]
                [group <tag>  copy]
                [group <tag>  delete]
                [group <tag>  cut]
                [group <tag>  font <font> ]
                [group <tag>  move <int>  <int> ]
                [group <tag>  movefront]
                [group <tag>  moveback]
                [group <tag>  property <property>  yes| no]
                [copy]
                [cut]
                [paste image| physical| wcs| wcsa...wcsz]
                [undo]

           Example:

               ds9 -regions foo.reg

               ds9 -regions -format ciao bar.reg # load as ciao format

               ds9 -regions foo.fits # FITS regions files do not need a format
                specification

               ds9 -regions load foo.reg # load foo.reg into current frame

               ds9 -regions load all foo.reg # load foo.reg into all frames

               ds9 -regions load '*.reg'# expand *.reg and load into current frame

               ds9 -regions load all '*.reg' # expand *.reg and load into all

       -red   For RGB frames,  sets the current color channel to red.

           Syntax
                -red

           Example:

               ds9 -red foo.fits

       -restore
              Restore DS9 to a previous state from a backup save set.

           Syntax
                -restore <filename>

           Example:

               ds9 -restore ds9.bck

       -rgb   Create RGB frame and control RGB frame parameters.

           Syntax
                -rgb []
                [red| green| blue]
                [channel [red| green| blue] ]
                [view [red| green| blue]  [yes| no] ]
                [system <coordsys> ]
                [lock wcs| crop| slice| bin| scale| colorbar| smooth [yes| no] ]
                [open| close]

           Example:

               ds9 -rgb # create new rgb frame

               ds9 -rgb red # set current channel to red

               ds9 -rgb channel red # set current channel to red

               ds9 -rgb view blue no # turn off blue channel

               ds9 -rgb system wcs # set rgb coordinate system

               ds9 -rgb lock wcs yes

               ds9 -rgb lock crop yes

               ds9 -rgb lock slice yes

               ds9 -rgb lock bin yes

               ds9 -rgb lock scale yes

               ds9 -rgb lock colorbar yes

               ds9 -rgb lock smooth yes

               ds9 -rgb open

               ds9 -rgb close

       -rgbarray

       -rgbcube

       -rgbimage

       -rotate
              Controls the rotation angle (in degrees) of the current frame.

           Syntax
                -rotate [<value> ]
                [to <value> ]
                [open| close]

           Example:

               ds9 -rotate 45

               ds9 -rotate to 30

               ds9 -rotate open

               ds9 -rotate close

       -samp  Enable/Disable SAMP protocol.

           Syntax
                -samp [yes| no]
                [broadcast [image| table] ]
                [send [image| table]  <application> ]

           Example:

               ds9 -samp yes

               ds9 -samp broadcast image

               ds9 -samp send image aladin

       -save  Save loaded image data of current frame as FITS.

           Syntax
                -save[fits| rgbimage| rgbcube| mecube| mosaic| mosaicimage]  <filename>
                [image| table| slice]

           Example:

               ds9 -save foo.fits

               ds9 -save fits foo.fits image

               ds9 -save fits foo.fits table

               ds9 -save fits foo.fits slice

               ds9 -save rgbimage foo.fits

               ds9 -save rgbcube foo.fits

               ds9 -save mecube foo.fits

               ds9 -save mosaic foo.fits

               ds9 -save mosaicimage foo.fits

       -saveimage

       -scale Controls the limits and color scale distribution.

           Syntax
                -scale [linear| log| pow| sqrt| squared| asinh| sinh| histequ]
                [log exp <value> ]
                [datasec yes| no]
                [limits <minvalue>  <maxvalue> ]
                [mode minmax| <value> | zscale| zmax]
                [scope local| global]
                [match]
                [lock [yes| no] ]
                [open| close]

           Example:

               ds9 -scale linear

               ds9 -scale log exp 100

               ds9 -scale datasec yes

               ds9 -scale histequ

               ds9 -scale limits 1 100

               ds9 -scale mode zscale

               ds9 -scale mode 99.5

               ds9 -scale scope local

               ds9 -scale match

               ds9 -scale lock yes

               ds9 -scale open

               ds9 -scale close

       -shm   Load a shared memory segment into the current frame.

           Syntax
                -shm [<key>  [<filename> ] ]
                [key <id>  [<filename> ] ]
                [shmid <id>  [<filename> ] ]
                [fits [key| shmid]  <id>  [<filename> ] ]
                [mosaicimage [iraf| wcs| wcsa...wcsz| wfpc2]  [key| shmid]  <id>
                [<filename> ] ]
                [mosaicimagenext [wcs| wcsa...wcsz]  [key| shmid]  <id>
                [<filename> ] ]
                [mosaic [iraf| wcs| wcsa...wcsz]  [key| shmid]  <id>  [<filename> ] ]
                [rgbcube [key| shmid]  <id>  [<filename> ] ]
                [rgbimage [key| shmid]  <id>  [<filename> ] ]
                [rgbarray [key| shmid]  <id>
                [xdim=<x> , ydim=<y> | dim=<dim> , zdim=3] , bitpix=<b> , [skip=<s> ] ]
                [array [key| shmid]  <id>
                [xdim=<x> , ydim=<y> | dim=<dim> ] , bitpix=<b> , [skip=<s> ] ]

           Example:

               ds9 -shm 102

               ds9 -shm key 102

               ds9 -shm shmid 102 foo

               ds9 -shm fits 100 foo

               ds9 -shm mosaicimage iraf key 100 foo

               ds9 -shm mosaicimage wcs key 100 foo

               ds9 -shm mosaicimage wcsa key 100 foo

               ds9 -shm mosaicimage wfpc2 key 100 foo

               ds9 -shm mosaicimagenext wcs key 100 foo

               ds9 -shm mosaic iraf key 100 foo

               ds9 -shm mosaic wcs key 100 foo

               ds9 -shm rgbcube key 100 foo

               ds9 -shm rgbimage key 100 foo

               ds9 -shm rgbarray shmid 102 [dim=32, zdim=3, bitpix=-32]

               ds9 -shm array shmid 102 [dim=32, bitpix=-32]

       -single
              Set display mode to single.

           Syntax
                -single

           Example:

               ds9 -single

       -skyview
              Support for SkyView image server at HEASARC.

           Syntax
                -skyview []
                [<object> ]
                [name <object> ]
                [coord <ra>  <dec>  degrees| sexagesimal]  # in wcs fk5
                [size <width>  <height>  degrees| arcmin| arcsec]
                [save yes| no]
                [frame new| current]
                [update frame| crosshair]
                [survey sdssi| sdssr| sdssg| sdssu| sdssg]
                [open| close]

           Example:

               ds9 -skyview

               ds9 -skyview m31

               ds9 -skyview name m31

               ds9 -skyview coord 00:42:44.404 +41:16:08.78 sexagesimal

               ds9 -skyview size 60 60 arcmin

               ds9 -skyview save yes

               ds9 -skyview frame current

               ds9 -skyview update frame

               ds9 -skyview survey sdssi

               ds9 -skyview open

               ds9 -skyview close

       -sleep Delays execution for specified number of seconds. Default is 1
               second.

           Syntax
                -sleep [#]

           Example:

               ds9 -sleep

               ds9 -sleep 2

       -slice noslice
               Indicates next files loaded are to treated as slices of a cube. Can
               be disabled with noslice command.

           Syntax
                -slice <filename>
                -noslice

           Example:

               ds9 -slice *.fits

               ds9 -noslice

       -smooth
              Smooth current image or set smooth parameters.

           Syntax
                -smooth []
                [yes| no]
                [function boxcar| tophat| gaussian]
                [radius <int> ]
                [open| close]
                [match]
                [lock [yes| no] ]

           Example:

               ds9 -smooth

               ds9 -smooth yes

               ds9 -smooth function tophat

               ds9 -smooth radius 4

               ds9 -smooth open

               ds9 -smooth close

               ds9 -smooth match

               ds9 -smooth lock yes

       -squared
              Select squared scale function for the current frame.

           Syntax
                -squared

           Example:

               ds9 -squared

       -sqrt  Select square soot scale function for the current frame.

           Syntax
                -sqrt

           Example:

               ds9 -sqrt

       -source
              Source TCL code from a file.

           Syntax
                -source filename

           Example:

               ds9 -source extensions.tcl

       -tcl   Enable tcl commands to be executed via XPA or SAMP. This can be a
               major security risk and is disabled by default. Please use with
               caution.

           Syntax
                -tcl [yes| no]

           Example:

               ds9 -tcl yes

       -theme Select GUI theme. Use native for the recommended theme for your
               platform. Note: not all themes are available on all platforms.

           Syntax
                -theme [native| clam| alt| default| classic| aqua| vista| win| xp]

           Example:

               ds9 -theme clam

       -threads
              Set number of process threads for functions which are multi-threaded.

           Syntax
                -threads #

           Example:

               ds9 -threads 8

       -tiff  Load TIFF image into current frame.

           Syntax
                -tiff <filename>

           Example:

               ds9 -tiff foo.tiff
                $cat foo.fits |  ds9 -tiff -

       -tile  Controls the tile display mode.

           Syntax
                -tile []
                [yes| no]
                [mode grid| column| row]
                [grid]
                [grid mode [automatic| manual] ]
                [grid layout <col>  <row> ]
                [grid gap <pixels> ]
                [row]
                [column]

           Example:

               ds9 -tile

               ds9 -tile yes

               ds9 -tile mode row

               ds9 -tile grid

               ds9 -tile grid mode manual

               ds9 -tile grid layout 5 5

               ds9 -tile grid gap 10

               ds9 -tile row

               ds9 -tile column

       -title Changes the display window title to the specified name.

           Syntax
                -title name

           Example:

               ds9 -title Voyager

       -unix  Set the IRAF unix socket name,  used by IRAF to communicate with DS9.
               The default is /tmp/.IMT%d,  so that the standard IRAF unix socket is
               defined.

           Syntax
                -unix name

           Example:

               ds9 -unix "/tmp/.IMT%d"

       -unix_only

       -update
              Updates the current frame or region of frame. In the second form,  the

       -url   Load FITS from URL into the current frame

           Syntax
                -url <url>

           Example:

               ds9 -url http://foo.bar.edu/foo.fits

       -version
              Returns the current version of DS9 and exits.

           Syntax
                -version

           Example:

               ds9 -version

       -view  Controls the GUI and visible RGB frame color channels.

           Syntax
                -view [layout horizontal| vertical]
                [info yes| no]
                [panner yes| no]
                [magnifier yes| no]
                [buttons yes| no]
                [colorbar yes| no]
                [graph horizontal| vertical yes| no]
                [filename yes| no]
                [object yes| no]
                [minmax yes| no]
                [lowhigh yes| no]
                [frame yes| no]
                [image| physical| wcs| wcsa...wcsz yes| no]
                [red yes| no]
                [green yes| no]
                [blue yes| no]

           Example:

               ds9 -view layout vertical

               ds9 -view info yes

               ds9 -view panner yes

               ds9 -view magnifier yes

               ds9 -view buttons yes

               ds9 -view colorbar yes

               ds9 -view graph horizontal yes

               ds9 -view filename yes

               ds9 -view object yes

               ds9 -view minmax yes

               ds9 -view lowhigh yes

               ds9 -view frame yes

               ds9 -view wcsa yes

               ds9 -view red yes

               ds9 -view green yes

               ds9 -view blue yes

       -visual
              Force DS9 to use the specified color visual. This argument MUST be
               the first argument listed. Requires the visual be available.

           Syntax
                -visual
                [pseudocolor| pseudocolor8| truecolor| truecolor8| truecolor16| truecolor24]

           Example:

               ds9 -visual truecolor24

       -vo    Invoke an connection to a Virtual Observatory site.

           Syntax
                -vo [method xpa| mime]
                [server <url> ]
                [internal yes| no]
                [delay #]
                [<url> ]
                [connect <url> ]
                [disconnect <url> ]
                [open| close]

           Example:

               ds9 -vo method xpa

               ds9 -vo server "http://foo.bar.edu/list.txt"

               ds9 -vo internal yes

               ds9 -vo delay 15 # keep-alive delay

               ds9 -vo chandra-ed

               ds9 -vo connect chandra-ed

               ds9 -vo disconnect chandra-ed

               ds9 -vo open

               ds9 -vo close

       -wcs   galactic arcsec

       ds9 foo.fits -crop match wcs

       ds9 foo.fits -crop lock wcs

       -web   Display specified URL in the web display.

           Syntax
                -web [new| <webname> ]  [<url> ]
                [<webname> ]  [click back| forward| stop| reload| #]
                [<webname> ]  [clear]
                [<webname> ]  [close]

           Example:

               ds9 -web www.cnn.com

               ds9 -web new www.cnn.com

               ds9 -web hvweb www.apple.com

               ds9 -web click back

               ds9 -web click 2

               ds9 -web clear

               ds9 -web close

       -width Set the width of the image display window. Use the geometry command
               to set the overall width and height of the ds9 window.

           Syntax
                -width [<value> ]

           Example:

               ds9 -width 512

       -xpa   Configure XPA at startup.

           Syntax
                -xpa [yes| no]
                [inet| local| unix| localhost]
                [noxpans]

           Example:

               ds9 -xpa no

               ds9 -xpa local

               ds9 -xpa noxpans

       -zmax  Set Scale Limits based on the IRAF algorithm and maximum data value.

           Syntax
                -zmax

           Example:

               ds9 -zmax

       -zoom  Controls the current zoom value for the current frame.

           Syntax
                -zoom [<value> ]
                [<value>  <value> ]
                [to <value> ]
                [to <value>  <value> ]
                [to fit]
                [open| close]

           Example:

               ds9 -zoom 2

               ds9 -zoom 2 4

               ds9 -zoom to 4

               ds9 -zoom to 2 4

               ds9 -zoom to fit

               ds9 -zoom open

               ds9 -zoom close

       -zscale

       -print Controls printing. Use print option to set printing options. Use
               print to actually print.

           Syntax
                -print [destination printer| file]
                [command <command> ]
                [filename <filename> ]
                [color rgb| cmyk| gray]
                [level 1| 2]
                [resolution 53| 72| 75| 150| 300| 600]

           Example:

               ds9 -print

               ds9 -print destination file

               ds9 -print command 'gv -'

               ds9 -print filename foo.ps

               ds9 -print color cmyk

               ds9 -print level 2

               ds9 -print resolution 75

FILES

       The   complete   text   of   the   DS9   manual   may   be  found  on  Debian  systems  at
       /usr/share/doc/saods9-doc/ref/.

AUTHOR

       DS9 is a product of the Smithsonian Astrophysical Observatory.

       This manual page was generated from the DS9 HTML documentation  by  a  script  written  by
       Justin Pryzby and Ole Streicher.

SEE ALSO

       xpaget(1), xpaset(1), xpaaccess(1), xpamb(1), xpainfo(1), xpans(1), xpachanges(7),

                                           03 Jul 2012                                     DS9(1)