Example spectrum header (GOODS/FORS2 release v2.0)

Goto Spectum Guildelines.
SIMPLE  =                    T / conforms to FITS standard
BITPIX  =                  -32 / array data type
NAXIS   =                    1 / number of array dimensions
NAXIS1  =                 1253
EXTEND  =                    T
BLOCKED =                    T / FITS file may be blocked
CRPIX1  =                940.8 / Reference pixel
CRVAL1  =    9004.003464650001 / Coordinate at reference pixel
CDELT1  =        3.19499993324 / Coordinate increment per pixel
CTYPE1  = 'Wave    '           / Axis type
CUNIT1  = 'Angstrom'           / Units of data axis 1
BSCALE  =                  1.0
BZERO   =                  0.0
BUNIT   = 'erg/cm2/s/A'        / Units of data value
DATAMAX =  0.06428232043980001 / Maximum data value
DATAMIN =    -0.00470230774954 / Minimum data value
OB_NAME = 'GOODS_7_1'          / Observing block name
OBJECT  = 'GDS J033230.37-274008.5' / Target name
RA_TARG =            53.126563 / [deg] Right ascension of target
DEC_TARG=           -27.669032 / [deg] Declination of target
ERR_TARG=                  0.1 / [arcsec] Error of target position on sky (rms)
EQUINOX =               2000.0 / equinox of celestial coord. system
RADECSYS= 'FK5     '           / Coordinate reference frame
FILENAME= 'GDS_J033230.37-274008.5_991435.fits'
VERSION = '2.0     '           / GOODS-FORS2 release number
DATE    = '2005-12-15T15:18:30' / Date this file was written
TIMESYS = 'UTC     '           / Time coordinate reference frame
NCOMBINE=                   12 / Number of combined exposures
TEXPTIME=           14399.5274 / Total exposure time [seconds]
MJDSTART=        52997.2146672 / [MJD] start time for 1. exposure in file
MJDEND  =         52998.254177 / [MJD] end time of last exposure in file
OBSSTART= '2003-12-24T05:09:07' / start time for 1. exposure in file
OBSEND  = '2003-12-25T06:05:59' / end time of last exposure in file
SEEINMAX=                  1.2 / Upper limit on seeing in arcseconds
TELESCOP= 'ESO-VLT-U4'         / Telescope name
INSTRUME= 'FORS2   '           / Instrument name
GRISM   = 'GRIS_300I'          / Grism name
FILTER  = 'NONE    '           / Order blocking filter
INS_MODE= 'MXU     '           / Instrument mode used
MASK_ID = '991435  '           / MASK id number
CHIP_ID = 'MIT/LL mosaic'      / Detector chip name
ORIGIN  = 'ESO/GOODS'          / Origin of the data product
PI-COI  = 'Cesarsky'           / Principle investigator(s)
PROG_ID = '170.A-0788'         / ESO program identification
REFERENC= '2005A&A...434...53V' / Reference publication
VOPUB   = 'ESO/VOS '           / VO Publisher
VOCREATE= 'ESO/ADP/GOODS'      / VO Creator
VORELDAT= 'Dec 24 2005'        / Release date
RA_SLIT =            53.126636 / [deg] Slit center position
DEC_SLIT=            -27.66914 / [deg] Slit center position
ERR_SLIT=                  0.1 / [arcsec] Error of pointing on sky (rms)
SLIT_LEN=                 11.0 / Length of MXU slit [arcsec]
SLIT_WID=                  1.0 / Width of MXU slit [arcsec]
SLIT_ROT=               -9.991 / Slit posang [deg] (N=0 E=90)
SPEC_RES=                 11.3 / [Angstrom] Reference spectral resolution (FWHM)
MIN_RES =                 10.5 / [Angstrom] Minimal spectral resolution (FWHM)
MAX_RES =                 13.0 / [Angstrom] Maximal spectral resolution (FWHM)
HISTORY This spectrum is the result of the combination of NCOMBINE exposures
HISTORY with a 2 arcsec dithering along the slit. The individual exposures
HISTORY were weighted by exposure time, seeing, and meteorological conditions.
HISTORY A standard flux calibration was performed but due to non-photometric
HISTORY conditions offsets are to be expected.
HISTORY Contact: Goods@eso.org
HISTORY Suggested acknowledgment:
HISTORY Observations have been carried out using the Very Large Telescope
HISTORY at the ESO Paranal Observatory under Program ID 170.A-0788
END

Note: This header is based on an older version of our Guidelines and misses a small number of the currently defined keywords. It is intended to give an indication of what the Guidelines mean for the file headers only and not to serve as a template.