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.
