--- header unit 0: primary ---
SIMPLE = F / FIT STANDARD
BITPIX = 16 / FITS BITS/PIXEL
NAXIS = 2 / NUMBER OF AXES
NAXIS1 = 2128 / WIDTH (TOTAL!)
NAXIS2 = 2069 / HEIGHT (TOTAL!)
SDSS / THIS HEADER CONTAINS SPECIAL SDSS KEYWORDS
UNSIGNED / UNSIGNED DATA - NO BSCALE OR BZERO KEYWORDS
TAI = 4713636103.85 / 1st row Number of seconds since Nov 17 1858
RA = 121.00000 / 1st row RA of telescope boresight (deg)
DEC = 30.000000 / 1st row Dec of telescope boresight (degrees)
SPA = 0.000 / 1st row Cam col position angle wrt N (deg)
IPA = 0.000 / 1st row Inst rotator position angle (deg)
IPARATE = NaN / 1st row Inst rotator anglr velocity (deg/sec)
AZ = 0.000000 / 1st row Azimuth (encoder) of tele (0=N?) (deg)
ALT = 0.000000 / 1st row Altitude (encoder) of tele (degrees)
FOCUS = 50.000000 / 1st row - Focus piston (microns?)
DATE-OBS = '2008-03-30' / 1st row - TAI date
TAIHMS = '23:21:43.84' / 1st row TAI time HH:MM:SS.SS
DATASUM = '132211736' / Data checksum created 2008-03-30T23:22:41
CHECKSUM = '8U1PAS0O2S0O8S0O' / HDU checksum created 2008-03-30T23:22:41
TIMESYS = 'tai' / TAI, not UTC
TAI-BEG = 4.71363602400000E+09 / Exposure Start Time
TAI-END = 4.71363605500000E+09 / Exposure End Time
MJD = 54556 / MJD of observation
VERSION = 'v4_38_0' / version of IOP
CAMVER = 'SPEC1 v4_8' / Camera code version
OBSERVER = 'dmbiz'
OBSCOMM = 'post-flat'
TELESCOP = 'SDSS 2-5m'
SEQID = 51453 / Spectro sequence number, unique over
EXPOSURE = 51453 / Spectro exposure number, unique over
EXPTIME = 1.00000000000000E+01 / Exposure time. (seconds)
DARKTIME = 3.10000000000000E+01 / Time between flush charge and read-ou
FLAVOR = 'flat' / Flavor of this sequence (e.g., dome f
QUALITY = 'excellent' / night/image quality
RADEG = 2.43767480000000E+02 / Right Ascension. (degrees)
DECDEG = 1.66657700000000E+01 / Declination. (degrees)
PLATEID = 2177 / Plate Id
TILEID = 8049 / Tile Id
CARTID = 4 / Cartridge Id
REDDEN = '0 0 0 0 0' / Median reddening vector for plate
MAPID = 5455301 / Map Id
NAME = '2177-54553-01' / Name of target; PlateId-MJD-Mapper Re
PLUGMAPO = '/data/spectro/plugMapM/plPlugMapM-2177-54553-01.par' / plPlugMap load
CAMERAS = 'b1' / camera ID in this exposure
CAMCOL = 1 / CCD ID in this exposure
COLBIN = 1 / Binning factor perpendicular to the c
ROWBIN = 1 / Binning factor perpendicular to the r
PROGRAM = 'binning 1   1' / Identifying name for CCD program
AMPLL = 0 / which amp 0,1,2,3 corresponds to low
AMPLR = 2 / which amp 0,1,2,3 corresponds to low
AMPUL = 1 / which amp 0,1,2,3 corresponds to high
AMPUR = 3 / which amp 0,1,2,3 corresponds to high
SECFOCUS = -9.9990000000000E+03 / Secondary Mirror Position as reported
GUIDEIMG = '/data/spectro/guider/gimg0999.fits' / Last archived guider image
WTIME = 1.20691904000000E+09 / weatherData(timeStamp)
AIRTEMP = 1.38000000000000E+01 / weatherData(airtemp)
DEWPOINT = -1.0200000000000E+01 / weatherData(dewpoint)
DEWDEP = 2.40000000000000E+01 / weatherData(dewpointDep)
DUSTA = 3.83490000000000E+04 / weatherData(dusta)
DUSTB = 1.65100000000000E+03 / weatherData(dustb)
DUSTC = 1.07290000000000E+04 / weatherData(dustc)
DUSTD = 1.87000000000000E+02 / weatherData(dustd)
GUSTD = 2.33500000000000E+02 / weatherData(gustd)
GUSTS = 3.17000000000000E+01 / weatherData(gusts)
HUMIDITY = 1.79000000000000E+01 / weatherData(humidity)
HUMIDOUT = 1.80000000000000E+01 / weatherData(humidout)
PRESSURE = 2.13680000000000E+01 / weatherData(pressure)
WINDD = 2.09300000000000E+02 / weatherData(windd)
WINDS = 1.89000000000000E+01 / weatherData(winds)
MC1HUMHT = 1.44000000000000E+01 / sp1 mech hartmann humidity
MC1HUMCO = 1.17000000000000E+01 / sp1 mech cen opt humidity
MC1TEMDN = 1.05000000000000E+01 / sp1 mech median temp
MC1THT = 1.02000000000000E+01 / sp1 mech Temp_Hartmann_Top
MC1TRCB = 1.06000000000000E+01 / sp1 mech Temp_Red_Cam_Bot
MC1TRCT = 1.07000000000000E+01 / sp1 mech Temp_Red_Cam_Top
MC1TBCB = 1.10000000000000E+01 / sp1 mech Temp_Blue_Cam_Bot
MC1TBCT = 1.06000000000000E+01 / sp1 mech Temp_Blue_Cam_Top
MC2HUMHT = -2.4900000000000E+01 / sp2 mech hartmann humidity
MC2HUMCO = 1.23000000000000E+01 / sp2 mech cen opt humidity
MC2TEMDN = 8.40000000000000E+00 / sp2 mech median temp
MC2THT = 9.20000000000000E+00 / sp2 mech Temp_Hartmann_Top
MC2TRCB = 9.40000000000000E+00 / sp2 mech Temp_Red_Cam_Bot
MC2TRCT = 8.30000000000000E+00 / sp2 mech Temp_Red_Cam_Top
MC2TBCB = 8.80000000000000E+00 / sp2 mech Temp_Blue_Cam_Bot
MC2TBCT = 8.60000000000000E+00 / sp2 mech Temp_Blue_Cam_Top
FFS = '1 1 1 1 1 1 1 1' / FlatField Screen 1:closed 0:open
FF = '1 1 1 1' / FlatField Lamps 1:on 0:off
NE = '0 0 0 0' / Ne Lamps 1:on 0:off
HGCD = '0 0 0 0' / Hgcd Lamps 1:on 0:off
SPEC1 = '1 0 1 1' / Dr_opn Dr_cls Latch Slithead (1:inpla
SPEC2 = '1 0 1 1' / Dr_opn Dr_cls Latch Slithead (1:inpla
TEMP01 = -9.3750000000000E+01 / CCD 01 Temperature
TEMP02 = -9.3750000000000E+01 / CCD 02 Temperature
TEMP03 = -9.2970000000000E+01 / CCD 03 Temperature
TEMP04 = -9.2970000000000E+01 / CCD 04 Temperature