Follow UsSTIS FITS keywords
References and comments on FITS keywords are listed below. See main page for background.
| Keyword | Reference(s) | Comments/Notes |
|---|---|---|
| GENERAL KEYWORDS | ||
| EXTNAME | 'Spectral Container' | MAST VO spectral container format |
| EQUINOX | 2000.00 | Comments here |
| RADECSYS | 'ICRS' | Comments here |
| TIMESYS | 'TT' | Comments here |
| MJDREF | 0.00000 | [d] MJD zero point for times |
| SPECSYS | 'HELIOCEN' | Comments here |
| VOCLASS | 'SPECTRUM V1.0' | VO Data Model |
| VOSEGT | 'SPECTRUM' | Segment type |
| DATALEN | 1024 | [ ] Number of points in spectrum |
| DSSOURCE | 'POINTED' | Survey or Pointed |
| DATA ID KEYWORDS | ||
| DATE | '2007-01-30T04:18:18' | Processing-Creation Date |
| VODATE | '2008-06-18' | Curation Date |
| VOREF | 'http://archive.stsci.edu/vodocs/hst/stis' | URL for Documentation |
| DS_IDENT | 'ads/sa.stis#o91o73050_x1d_vo.fits' | Data Set Identifier |
| VERSION | '1.0' | Processing Version |
| COLLECT | 'HST/STIS' | Data Set Collection |
| INSTRUME | 'STIS' | Instrument |
| TELESCOP | 'HST' | Telescope |
| FILENAME | 'o91o73050_x1d_vo.fits' | File Name |
| CR_IDENT | 'o91o73050' | Internal dataset ID |
| CRETYPE | 'Archival' | Not an on-the-fly dataset |
| CURATION KEYWORDS | ||
| VOPUB | 'MAST' | VO Publishing Authority |
| AUTHOR | 'HST project' | Creator |
| VOPUBID | 'archive.stsci.edu' | URI for VO Publisher |
| VOLOGO | 'http://archive.stsci.edu/images/100.mastlogo.gif' | MAST logo |
| VOVER | '1.0' | VO Curation version |
| VORIGHTS | 'PUBLIC' | Data is public |
| CONTRIB1 | 10263 | Program ID |
| CONTACT | 'archive help desk' | Comments here |
| 'archive@stsci.edu' | Comments here | |
| TARGET KEYWORDS | ||
| OBJECT | 'SN1987A-STIS' | proposer's target name |
| TITLE | 'o91o73050_x1d, SN1987A-STIS' | filename, object |
| RA_TARG | 83.8671250000 | [deg] right ascension of target |
| DEC_TARG | -69.2696805556 | [deg] declination of target |
| WCS Paper 3 Keywords | ||
| 1S2_1 | 'WAVE' | Column name with spectral coordinates |
| 1CYTP2 | 'WAVE-TAB' | Spectral coordinate is wavelength |
| 1S3_1 | 'WAVE' | Column name with spectral coordinates |
| 1CYTP3 | 'WAVE-TAB' | Spectral coordinate is wavelength |
| 1S4_1 | 'WAVE' | Column name with spectral coordinates |
| 1CYTP4 | 'WAVE-TAB' | Spectral coordinate is wavelength |
| COVERAGE: SPATIAL | ||
| RA | 83.8671250000 | right ascension of target |
| DEC | -69.2696805556 | declination of target |
| APERTURE | '52X0.2' | [arcsec] aperture width or length x width |
| COVERAGE: TEMPORAL | ||
| DATE-OBS | '2004-07-23T02:34:20' | UT observation start time |
| EXPOSURE | 1546.0000 | [s] exposure duration |
| TSTART | 53209.10718502 | [d] MJD exposure start time |
| TSTOP | 53209.12507854 | [d] MJD exposure stop time |
| TMID | 53209.11613178 | [d] MJD exposure mid time |
| COVERAGE: SPECTRAL | ||
| SPECSDIM | '1.0E-10 L' | Comments here |
| SPEC_CAL | 'ABSOLUTE' | Calibrated spectral coordinate |
| SPEC_ERR | 0.00000 | [angstrom] Wavelength statistical error |
| SPECBAND | 'Optical,Near-IR' | Spectral Band(s) |
| SPEC_VAL | 7753.062 | [angstrom] Mean Wavelength |
| SPEC_BW | 4991.988 | [angstrom] Bandpass Width Wmax - Wmin |
| SPEC_FIL | 1.00000 | [ ] No gaps between points |
| SPEC_RP | 790.00000 | [ ] average resolving power W/dW |
| COVERAGE: OBSERVABLE | ||
| FLUXSDIM | '1.0E+7 ML-1T-3' | Comments here |
| FLUX_CAL | 'ABSOLUTE' | Calibrated or uncalibrated Fluxes |
| STAT_ERR | 5 | [ ] flux error in percent |
| DER_SNR | 0.230 | [ ] Mean signal-to-noise ratio |
| FLUXAVG | 4.76452E-17 | [erg/cm**2/s/angstrom] Average Flux |
| FLUXMAX2 | 5.43453E-16 | [erg/cm**2/s/angstrom] 98% Maximum Flux |
| SPECDISP | 4.875 | [angstrom/pixel] Dispersion |
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