---
name: "skyview"
section: "1"
platform: "linux"
package: "skyview"
version: "3.5.7+repack-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/skyview"
---

# skyview(1)

Image generation from a range of remote databases

## NAME

SkyView - Image generation from a range of remote databases

## SYNOPSIS

**skyview** *Survey=*arg \[*key=*arg ...\]\

## DESCRIPTION

SkyView provides users with a local SkyView system on their own machines.  Users can generate FITS, GIF, JPEG, ... images from major surveys in any requested geometry, resample and mosaic their own data, overlay grids and catalog positions, and create their own surveys.

## OPTIONS

Keys are not case sensitive but values may be. Values specifying more than one value use a comma as a separator. Valid keys include:

- **Survey**

  A survey for which an image is requested (e.g, WENSS, DSS) (Required, with no default.) To request multiple surveys, separate them by commas. Survey names are not case sensitive. The 'user' survey references data given in the UserFile argument

- **Settings**

  A list of one or more files from which settings are read. File settings are processed after argument settings.

### Keys that define the geometry of the output image.

- **Position**

  The longitude and latitude of the center of the image.  This may be given as coordinates or as a target name \[No default\]

- **Lon**

  The decimal longitude of the center of the image \[No default\]

- **Lat**

  The decimal latitude of the center of the image \[No default\]

Either Position or Lon and Lat must be specified.

- **Coordinates**

  A string giving the coordinate system and epoch (if required)  used, e.g., J, J2000, B1950, ICRS, Gal, H2010.438 \[J\]

- **Equinox**

  Epoch of equinox of coordinates \[2000\]

- **Projection**

  The three letter FITS WCS specification of the projection. \[Tan\]

- **Scale:**

  The pixels scale in degrees (may be one or two values) \[survey dependent\]

- **Size**

  The size of the entire image in degrees \[scale\*pixels\]

Generally you specify either scale or size but not both.

- **Pixels**

  The number of pixels in the image (may be one or two values) \[300\]

- **Rotation**

  A rotation angle in the projection plane \[0\]

### Keys that control optional graphical outputs

- **Quicklook**

  The format desired for quicklook output.  JPEG, GIF, BMP and TIFF are supported.  If another graphic keyword is used without specifying the format it defaults to JPEG.

- **Scaling**

  How the output pixel intensities are to be scaled. Linear, Log, Sqrt, HistEq are supported \[Linear\]

- **Min**

  Set all smaller pixel values to this value before scaling.

- **Max**

  Set all larger pixel values to this value before scaling.

- **RGB**

  Create a three color overlay

- **RGBSmooth**

  Box smoothing for planes of RGBImages

- **Invert**

  Invert the color table response (or gray scale if no color lookup table is defined).

- **LUT**

  Load a color lookup table.  See the users guide for lists of internal color tables and files supplied in the JAR.  User generated color tables may also be used.

- **Grid**

  Plot a grid of the image or specified coordinate system as an image overlay.

- **GridLabels**

  Label the grid lines with the coordinate entries

- **PlotScale**

  Scaling for plot symbols

- **PlotFontSize**

  Size of plot text in points.

- **PlotColor**

  Color of plot graphics

### Catalog query keys

- **Catalog**

  The names of the catalogs to be queried, or URLs that specify VOTable outputs.

- **CatalogFile**

  The name of a file in which to print the IDs, positions, and pixel locations of the catalog entries found.

- **CatalogRadius**

  A maximum radius from the center of the image for which catalog entries are desired.

- **CatalogQualifier**

  A qualification on a column of the returned table (e.g. vmag\<10)

- **CatalogIDs**

  When plotting catalog positions print the numeric ID of the catalog entry

### Keys that define the sampling used

- **Sampler**

  The sampling algorithm to be used. NN, LI, Lanczos\[n\], Spline\[n\], Clip \[NN\]

- **Ebins**

  Specification of sampling in energy dimension: e0,de,ne \[survey dependent for 3-d surveys\]\
    e0 is the starting offset of the first output bin.\
    de is the width of the output bins (relative to the input).\
    n  is th number of output bins.

### Keys that set characteristics of the output FITS file

- **Output**

  The output file stem \[output\]

- **Compress**

  If specified the output is gzip compressed

- **Float**

  If specified the output is 4 byte rather than 8 byte real

- **NoFITS**

  A FITS file should not be produced.

### Smoothing

- **Smooth**

  A box size (or sizes for non-square box) for a box car smoothing.

### Contours

- **Contour**

  Create a contour map overlay

- **ContourSmooth**

  Smoothing to be applied to survey before contouring

### Keys that set where to look for survey and store survey data.

- **XMLRoot**

  A directory of XML files that contain survey descriptions

- **SurveyManifest**

  Overrides the name of the resource used to look for the survey manifest (normally included in JAR).

- **SurveyXML**

  A file or files giving XML descriptions of surveys

- **UserFile**

  A file (or list of files) that defines the 'User' survey.  These are the actual survey images not survey metadata.

- **Cache**

  A directory (or comma delimited set of directories) where cached files are to be found.  The first cache directory is where survey files used in this request will be saved.

- **PurgeCache**

  Delete any survey files downloaded in this request.

### Keys that define the classes used for processing the request.

- **Deedger**

  Class that eliminates transitions at input image boundaries.

- **SurveyFinder**

  Class that loads and finds surveys given survey names/IDs

- **ImageFinder**

  Class that finds images in a survey to use in a mosaic.

- **PreProcessor**

  Class\[es\] to process input images before resampling.

- **Mosaicker**

  Class that actually mosaics survey data to create output image.

- **PostProcessor**

  Class\[es\] that process the output image after mosaicking.

### Keys that change the behavior of the process.

- **ImageJ**

  Leave an ImageJ session running with the generated images when finished.

## Available surveys (including all aliases)

  0035mhz, 0408mhz, 1420mhz, 1420mhz (bonn), 2mass-h\
   2mass-j, 2mass-k, 2massh, 2massj, 2massk, 35mhz, 408mhz\
   4850mhz, 4mass, akari n160, akari n60, akari wide-l\
   akari wide-s, akari-n160, akari-n60, akari-wide-l\
   akari-wide-s, akari\_n160, akari\_n60, akari\_wide-l\
   akari\_wide-s, bat flux 1, bat flux 100-150, bat flux 14-20\
   bat flux 150-195, bat flux 2, bat flux 20-24, bat flux 24-35\
   bat flux 3, bat flux 35-50, bat flux 4, bat flux 5\
   bat flux 50-75, bat flux 6, bat flux 7, bat flux 75-100\
   bat flux 8, bat snr 1, bat snr 100-150, bat snr 14-195\
   bat snr 14-20, bat snr 150-195, bat snr 2, bat snr 20-24\
   bat snr 24-35, bat snr 3, bat snr 35-50, bat snr 4\
   bat snr 5, bat snr 50-75, bat snr 6, bat snr 7, bat snr 75-100\
   bat snr 8, bat snr sum, bat-flux-1, bat-flux-2, bat-flux-3\
   bat-flux-4, bat-flux-5, bat-flux-6, bat-flux-7, bat-flux-8\
   bat-snr-1, bat-snr-2, bat-snr-3, bat-snr-4, bat-snr-5\
   bat-snr-6, bat-snr-7, bat-snr-8, bat-snr-sum, cdfs less\
   cdfs: less, cgro comptel, co, co2d, cobe dirbe/aam\
   cobe dirbe/zsma, cobeaam, cobezsma, comptel, digitized sky survey\
   dss, dss1 blue, dss1 red, dss1b, dss1r, dss2 blue\
   dss2 ir, dss2 red, dss2b, dss2ir, dss2r, dssold, ebhis\
   ebhis(nhi), egret (3d), egret \<100 mev, egret \>100 mev\
   egret(3d), egret1000, egret30, egret3d, egrethard\
   egretsoft, euve 171 a, euve 405 a, euve 555 a, euve 83 a\
   euve171, euve405, euve555, euve83, fermi 1, fermi 2\
   fermi 3, fermi 4, fermi 5, fermi band 1, fermi band 2\
   fermi band 3, fermi band 4, fermi band 5, fermi1, fermi2\
   fermi3, fermi4, fermi5, first, galex far uv, galex near uv\
   galexfar, galexnear, gb6, gb6 (4850mhz), gb6/pmn, geetee\
   gns, goods acis fb, goods acis hb, goods acis sb, goods acs b\
   goods acs i, goods acs v, goods acs z, goods herschel 100\
   goods herschel 160, goods herschel 250, goods herschel 350\
   goods herschel 500, goods irac 1, goods irac 2, goods irac 3\
   goods irac 3.6, goods irac 4, goods irac 4.5, goods irac 5.8\
   goods irac 8.0, goods isaac h, goods isaac j, goods isaac ks\
   goods mips, goods n vla, goods vimos r, goods vimos u\
   goods: chandra acis fb, goods: chandra acis hb, goods: chandra acis sb\
   goods: herschel 100, goods: herschel 160, goods: herschel 250\
   goods: herschel 350, goods: herschel 500, goods: hst acs b\
   goods: hst acs i, goods: hst acs v, goods: hst acs z\
   goods: hst nicmos, goods: spitzer irac 3.6, goods: spitzer irac 4.5\
   goods: spitzer irac 5.8, goods: spitzer irac 8.0, goods: spitzer mips\
   goods: spitzer mips 24, goods: vla north, goods: vlt isaac h\
   goods: vlt isaac j, goods: vlt isaac ks, goods: vlt vimos r\
   goods: vlt vimos u, goods\_acs\_b, goods\_acs\_i, goods\_acs\_v\
   goods\_acs\_z, goodsacisfb, goodsacishb, goodsacissb\
   goodsherschel1, goodsherschel2, goodsherschel3, goodsherschel4\
   goodsherschel5, goodsirac 1, goodsirac 2, goodsirac 3\
   goodsirac 4, goodsmips, goodsnicmos, goodsnvla, granat/sigma\
   granat/sigma flux, granat/sigma sig, granat\_sigma\_flux\
   granat\_sigma\_sig, gtee, gtee 35mhz, h-alpha, h-alpha comp\
   h-alpha composite, halpha, halpha/comp, hawaii hdf b\
   hawaii hdf i, hawaii hdf r, hawaii hdf u, hawaii hdf v0201\
   hawaii hdf v0401, hawaii hdf z, hawaii: hdf b, hawaii: hdf i\
   hawaii: hdf r, hawaii: hdf u, hawaii: hdf v0201, hawaii: hdf v0401\
   hawaii: hdf z, heao 1 a-2, heao1a, hi map, hi4pi, hi4pi(nhi)\
   hri, hriint, hudf: vlt isaac ks, hudfisaac, int gal 17-35 exp\
   int gal 17-35 flux, int gal 17-35 sig, int gal 17-60 exp\
   int gal 17-60 flux, int gal 17-60 sig, int gal 35-80 exp\
   int gal 35-80 flux, int gal 35-80 sig, integral/spi gc\
   integralspi\_gc, intgal1735e, intgal1735f, intgal1735s\
   intgal1760e, intgal1760f, intgal1760s, intgal3580e\
   intgal3580f, intgal3580s, iras  100, iras  12, iras  25\
   iras  60, iras 100, iras 100 micron, iras 12, iras 12 micron\
   iras 25, iras 25 micron, iras 60, iras 60 micron, iras100\
   iras12, iras25, iras60, iris  100, iris  12, iris  25\
   iris  60, iris 100, iris 100 micron, iris 12, iris 12 micron\
   iris 25, iris 25 micron, iris 60, iris 60 micron, iris100\
   iris12, iris25, iris60, mell-b, mell-g, mell-r, mellinger blue\
   mellinger green, mellinger red, mellinger-b, mellinger-g\
   mellinger-r, n-vss, neat, neat/skymorph, nh, nvss\
   planck 030, planck 044, planck 070, planck 100, planck 143\
   planck 217, planck 353, planck 545, planck 857, planck-030\
   planck-044, planck-070, planck-100, planck-143, planck-217\
   planck-353, planck-545, planck-857, planck030, planck044\
   planck070, planck100, planck143, planck217, planck353\
   planck545, planck857, pmn, pspc 0.6 deg-cnt, pspc 0.6 deg-counts\
   pspc 0.6 deg-exp, pspc 0.6 deg-expos, pspc 0.6 deg-int\
   pspc 0.6 deg-inten, pspc 1.0 deg-cnt, pspc 1.0 deg-counts\
   pspc 1.0 deg-exp, pspc 1.0 deg-expos, pspc 1.0 deg-int\
   pspc 1.0 deg-inten, pspc 2.0 deg-cnt, pspc 2.0 deg-counts\
   pspc 2.0 deg-exp, pspc 2.0 deg-expos, pspc 2.0 deg-int\
   pspc 2.0 deg-inten, pspc0.6cnt, pspc0.6exp, pspc0.6int\
   pspc1cnt, pspc1exp, pspc1int, pspc2cnt, pspc2exp, pspc2int\
   rass, rass background 1, rass background 2, rass background 3\
   rass background 4, rass background 5, rass background 6\
   rass background 7, rass broad, rass hard, rass soft\
   rass-cnt broad, rass-cnt hard, rass-cnt soft, rass-int broad\
   rass-int hard, rass-int soft, rass3bb, rass3hb, rass3sb\
   rassback1, rassback2, rassback3, rassback4, rassback5\
   rassback6, rassback7, rassbb, rassbbc, rassbbi, rassbck1\
   rassbck2, rassbck3, rassbck4, rassbck5, rassbck6, rassbck7\
   rasscnt bb, rasscnt hb, rasscnt sb, rasshb, rasshbc\
   rasshbi, rassint bb, rassint hb, rassint sb, rasssb\
   rasssbc, rasssbi, rosat wfc f1, rosat wfc f2, rxte allsky 3-20kev\
   rxte allsky 3-20kev flux, rxte allsky 3-20kev sig\
   rxte allsky 3-8kev, rxte allsky 3-8kev flux, rxte allsky 3-8kev sig\
   rxte allsky 8-20kev, rxte allsky 8-20kev flux, rxte allsky 8-20kev sig\
   rxte3\_20k\_flux, rxte3\_20k\_sig, rxte3\_8k\_flux, rxte3\_8k\_sig\
   rxte8\_20k\_flux, rxte8\_20k\_sig, sdss g, sdss i, sdss r\
   sdss u, sdss z, sdssdr7 g, sdssdr7 i, sdssdr7 r, sdssdr7 u\
   sdssdr7 z, sdssdr7g, sdssdr7i, sdssdr7r, sdssdr7u\
   sdssdr7z, sdssg, sdssi, sdssr, sdssu, sdssz, sfd 100 micron\
   sfd 100m, sfd dust, sfd dust map, sfd100m, sfddust\
   shassa c, shassa cc, shassa h, shassa sm, shassa-c\
   shassa-cc, shassa-h, shassa-sm, shassa\_c, shassa\_cc\
   shassa\_h, shassa\_sm, stripe 82 vla, stripe82vla, sumss\
   sumss 843 mhz, tgss, tgss adr1, tgss\_adr1, ukidss h\
   ukidss j, ukidss k, ukidss y, ukidss-h, ukidss-j, ukidss-k\
   ukidss-y, ukidssh, ukidssj, ukidssk, ukidssy, vla first (1.4 ghz)\
   vlss, vlssr, w-nss, wenss, wfcf1, wfcf2, wise 12, wise 22\
   wise 3.4, wise 4.6, wise w1, wise w2, wise w3, wise w4\
   wise12, wise22, wise3.4, wise4.6, wisew1, wisew2, wisew3\
   wisew4, wmap, wmap ilc, wmap k, wmap ka, wmap q, wmap v\
   wmap w, wmap-k, wmap-ka, wmap-q, wmap-v, wmap-w, wmapilc\
   wmapk, wmapka, wmapq, wmapv, wmapw
