--- header unit 0: primary ---
SIMPLE = T / file does conform to FITS standard
BITPIX = -32 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 1816 / length of data axis 1
NAXIS2 = 3 / length of data axis 2
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
BSCALE = 1. / True_value = BSCALE * FITS_value + BZERO
BZERO = 0. / True_value = BSCALE * FITS_value + BZERO
DATE = '2004-08-24T23:40:18' / file creation date (YYYY-MM-DDThh:mm:ss UT)
EXTNAME = 'SPECTRUM' / Name of image extension
EXTVER = 1 / Extension identifier
ORIGIN = 'MGCz' / Source of the data
OBJECT = 'MGC28379' / Object name
OBSERVAT = 'La Silla' / Name of observatory
LATITUDE = -29.2584 / Telescope latitude in deg
LONGITUD = -70.7345 / Telescope longitude in deg
HEIGHT = 2377. / Telescope height above sea level in m
TELESCOP = 'NTT' / ESO New Technology Telescope
INSTRUME = 'EMMI' / ESO Multi-Mode Instrument
SPECTID = 'RILD' / EMMI spectrograph mode
GRISMID = 'Gr#3' / EMMI grism ID
RDNOISE = 4.19 / Readout noise in e-
GAIN = 1.32 / Readout gain in e-/ADU
DATE-OBS = '2004-04-15' / UT date of start of observation
UT = '02:52:12.0' / UT of start of observation
MJD = 53110.11946867 / Modified Julian Date of observation
LST = '11:43:40.8' / Local sidereal time at start of observation
AZIMUTH = 190.713 / Azimuth at start of observation in deg
ALT = 60.489 / Altitude at start of observation in deg
AIRMASS = 1.147 / Effective mean airmass
EXPTIME = 1199.998 / Exposure time in s
CTYPE1 = 'Wavelength' / Type of coordinate on axis 1
CUNIT1 = 'Angstrom' / Units for axis 1
CRPIX1 = 1. / WCS reference point
CRVAL1 = 3867.382 / WCS reference value
CD1_1 = 2.837354 / WCS transformation matrix element
CD1_2 = 0. / WCS transformation matrix element
CD2_1 = 0. / WCS transformation matrix element
CD2_2 = 1. / WCS transformation matrix element
BUNIT = 'erg/cm2/s/A' / Units for data
ROW1 = 'Spectrum' / Identifier
ROW2 = 'Sigma' / Identifier
ROW3 = 'Sky' / Identifier
RA_SLIT = 181.11811 / Slit right ascension in deg (J2000)
DEC_SLIT = -0.14509 / Slit declination in deg (J2000)
W_SLIT = 1.5 / Slit width in arcsec
L_SLIT = 480. / Slit length in arcsec
PA_SLIT = 151.6 / Slit position angle in deg
Z = 0.15182 / Measured redshift
Z_HELIO = 0.15178 / Heliocentric redshift
Z_QUAL = 4 / Redshift quality
BEST_Z = T / Best redshift flag
SN = 6.6 / Median S/N per pixel in 4000-6000 A band
ABEMMA = 3 / 0-3 = abs+em, abs, em or manual redshift
RA = 181.11811 / Slit right ascension in deg (J2000)
DEC = -0.14509 / Slit declination in deg (J2000)
WMIN = 3867.382 / Minimum wavelength in A
WMAX = 9017.18 / Maximum wavelength in A