| TTYPE"number" | name of column "number" |
| TFORM"number" | data format of column "number" |
| TUNIT"number | unit of column "number" |
| TUCD"number" | UCD of column "number" |
| TUTYP"number" | UTYPE of column "number" |
| EXTNAME | extension name |
| VOCLASS | data model name and version |
| VOSEGT | dataset or segment type |
| RADECSYS | astrometric reference system |
| REFCAT | astrometric reference catalogue |
| TIMESYS | timescale |
| MJDREF | [d] Modified Julian Date zeropoint |
| SPECSYS | spectral frame origin |
| VOPUB | the VO publisher |
| VOPUBDID | URI for VO publisher |
| VORIGHTS | the data is public |
| VODATE | data release date |
| AUTHOR | author name |
| VOVER | VO data version |
| VOREF | URL for documentation |
| CONTACT | contact for help |
| contact email | |
| TITLE | unique title |
| CREATOR | data creator |
| VERSION | data release version |
| DATE | file creation date (YYYY-MM-DDThh:mm:ss UT) |
| VOLOGO | data creator logo |
| TELESCOP | the observing facility |
| INSTRUME | the instrument used |
| DSSOURCE | character of data |
| COLLECT | name of data collection |
| TIMESDIM | SI factor and dimensions |
| SPECSDIM | SI factor and dimensions |
| FLUXSDIM | SI factor and dimensions |
| FLUX_UCD | flux axis ucd |
| FLUX_CAL | flux calibration status |
| SPEC_UCD | spectral axis ucd |
| SPEC_RP | "lambda/d_lambda" at 6563AA, ISR ACS 2008-01 |
| SPEC_SYE | [angstrom] rms-error in wavelength calibration |
| SPEC_ERR | [angstrom] wavelength statistical error |
| SPEC_CAL | spectral calibration status |
| TIMEUNIT | unit for time |
| POSERR | [arcsec] position error |
| FILTER | the main optical element |
| CR_IDENT | software version used to generate data |
| PHOTMODE | optical elements in the light path |
| SPEC_FIL | no gaps in the spectrum |
| SPECBAND | bandpass description |
| SKY_RES | [arcsec/pix] the pixel scale |
| CRETYPE | dataset creation type |
| APERNUM | beam identification |
| ASN_ID | association name |
| OBJECT | the target name |
| FILENAME | fits file name |
| DS_IDENT | unique identification for the data |
| RA_TARG | [deg] the target right ascension |
| DEC_TARG | [deg] the target declination |
| RA | [deg] RA location of spectral axis |
| DEC | [deg] DEC location of spectral axis |
| EQUINOX | coordinate equinox |
| GAL_LONG | [deg] galactic longitude |
| GAL_LAT | [deg] galactic latitude |
| ECL_LONG | [deg] ecliptic longitude |
| ECL_LAT | [deg] ecliptic latitude |
| OBJSHAPA | [arcsec] major axis extent |
| OBJSHAPB | [arcsec] minor axis extent |
| OBJPA | [deg] orientation of major axis in NESW |
| DRZAPLEN | [arcsec] slit length on the drizzled image |
| OBJTYPE | Object treated as poinlike (1/0 = y/n) |
| WCSOFFRA | [arcsec] RA offset applied to the WCS |
| WCSOFFDE | [arcsec] DEC offset applied to the WCS |
| WCSNOBJ | number of sources used for offset determination |
| WCSNOBJ1 | # of UCAC2 sources in offset determination |
| WCSNOBJ2 | # of 2MASS-PSC sources in offset determination |
| WCSNOBJ3 | # of SDSS-DR5 sources in offset determination |
| WCSNOBJ4 | # of USNO-B1.0 sources in offset determination |
| WCSNOBJ5 | # of GSC2.3.2 sources in offset determination |
| WCSNOBJ6 | # of GOODS sources in offset determination |
| XSHIFT | [pix] x-shift for extraction |
| YSHIFT | [pix] y-shift for extraction |
| RFMAGVAL | AB magnitude from SExtractor |
| RFMAGERR | AB magnitude error from SExtractor |
| RFMAGFIL | the "best" filter in the sample |
| MAGBAND1 | filter name for spectral magnitude |
| SMAG1 | spectral AB magnitude value |
| SMAGERR1 | spectral AB magnitude error |
| MAGBAND2 | filter name for spectral magnitude |
| SMAG2 | spectral AB magnitude value |
| SMAGERR2 | spectral AB magnitude error |
| DER_SNR | derived SNR |
| SPECDISP | [angstrom/pix] dispersion of spectral axis |
| IMCMB"number" | name of contributing dataset "number" |
| APERLEN | [arcsec] slit length |
| APERWID | [arcsec] slit width |
| APERTURE | aperture name |
| APERPA | [deg] slit orientation on sky NESW |
| SPEC_BW | [angstrom] width of the spectral axis |
| SPEC_VAL | [angstrom] mean of the spectral axis |
| TDMIN1 | [angstrom] start of the spectral axis |
| TDMAX1 | [angstrom] end of the spectral axis |
| TDMIN2 | [e/s] minimum counts |
| TDMAX2 | [e/s] maximum counts |
| TDMIN4 | [erg/cm^2/s/angstrom] minimum flux |
| TDMAX4 | [erg/cm^2/s/angstrom] maximum flux |
| FLUXMAX2 | [erg/cm^2/s/angstrom] 98% maximum flux |
| FLUXAVG | [erg/cm^2/s/angstrom] average flux value |
| TDMIN6 | [erg/cm^2/s/angstrom] min. flux contamination |
| TDMAX6 | [erg/cm^2/s/angstrom] max. flux contamination |
| EXPOSURE | [s] total exposure time |
| TSTART | [MJD] start of first exposure |
| TSTOP | [MJD] end of last exposure |
| TMID | [MJD] midterm of observations |
| DATE-OBS | UT observation start time |
| FTPRT_AP | footprint of the 'slit' |
| FTPRT_EX | footprint of the 'slit' |
| DATALEN | number of spectral points |
| LONGSTRN | the OGIP long string convention may be used. |
| OBJECTID | Object ID |
| EXTNAME | extension name |
| OBJECT | the target name |
| RA | [deg] the target right ascension |
| DEC | [deg] the target declination |
| APERNUM | beam identification |
| ASN_ID | association name |
| GAL_LONG | [deg] galactic longitude |
| GAL_LAT | [deg] galactic latitude |
| ECL_LONG | [deg] ecliptic longitude |
| ECL_LAT | [deg] ecliptic latitude |
| OBJSHAPA | [arcsec] major axis extent |
| OBJSHAPB | [arcsec] minor axis extent |
| OBJPA | [deg] orientation of major axis in NESW |
| DRZAPLEN | [arcsec] slit length on the drizzled image |
| OBJTYPE | Object treated as poinlike (1/0 = y/n) |
| WCSOFFRA | [arcsec] RA offset applied to the WCS |
| WCSOFFDE | [arcsec] DEC offset applied to the WCS |
| XSHIFT | [pix] x-shift for extraction |
| YSHIFT | [pix] y-shift for extraction |
| MAGBAND_i | filter name for spectral magnitude i |
| SMAG_i | spectral AB magnitude value i |
| SMAGERR_i | spectral AB magnitude error i |
| RFMAGFIL | the "best" filter in the sample |
| RFMAGVAL | AB magnitude from SExtractor |
| RFMAGERR | AB magnitude error from SExtractor |
The zeroth extension of the direct image stamp contains the metadata:
| OBJECT | the target name |
| RA | [deg] the target right ascension |
| DEC | [deg] the target declination |
| APERNUM | beam identification |
| ASN_ID | association name |
| GAL_LONG | [deg] galactic longitude |
| GAL_LAT | [deg] galactic latitude |
| ECL_LONG | [deg] ecliptic longitude |
| ECL_LAT | [deg] ecliptic latitude |
| OBJSHAPA | [arcsec] major axis extent |
| OBJSHAPB | [arcsec] minor axis extent |
| OBJPA | [deg] orientation of major axis in NESW |
| OBJTYPE | Object treated as poinlike (1/0 = y/n) |
| BEAMPA | [deg] trace angle at sky NESW |
| SLITPA | [deg] slit orientation on sky NESW |
| SLITLENG | [arcsec] slit length |
| SLITWIDT | [arcsec] slit width |
| WCSOFFRA | [arcsec] RA offset applied to the WCS |
| WCSOFFDE | [arcsec] DEC offset applied to the WCS |
The higher extensions have the WCS keywords (RA/DEC) and the metadata:
| ORIENTAT | position angle of image y axis (deg. e of n) |
| BUNIT | Units of science product |
| DATE-OBS | UT date of start of observation (yyyy-mm-dd) |
| TIME-OBS | UT time of start of observation (hh:mm:ss) |
| EXPTIME | [s] co-added exposure time |
| OBJ_XPOS | x-position of object |
| OBJ_YPOS | y-position of object |
| MAGZERO | zeropoint for AB-magnitudes |
| MAGVAL | AB-magnitude value from SExtractor (MAG_AUTO) |
| MAGERR | AB-magnitude error from SExtractor (MAG_AUTO) |
| FILTER | imaging filter |
| EXTNAME | extension name |