Suzaku Observation : 809001230

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '809001230'          / Observation identification string
OBSERVER= 'YOSHIHIRO UEDA'     / Principal Investigator
OBJECT  = 'THE MOON'           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             142.9260 / planned target R.A.(deg)
DEC_OBJ =              10.1471 / planned target DEC.(deg)
RA_NOM  = 1.429239000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 1.015070000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             105.6986 / nominal position angle from north to DETY(deg)
MEAN_EA1=     142.923857078220 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      79.849324777677 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     344.301394210662 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2014-11-14T14:01:52' / Start date of observations
DATE-END= '2014-11-14T17:10:12' / End date of observations
TSTART  = 4.692889179495065E+08 / time start
TSTOP   = 4.693001935809704E+08 / time stop
TELAPSE = 1.127563146388531E+04 / elapsed time
ONTIME  = 5.220799037516117E+03 / On-source time
EXPOSURE= 5.220799037516117E+03 / Exposure time
MJD-OBS = 5.697558544136002E+04 / MJD of data start time
FILIN001= 'ae809001230xi0_0_3x3n066t_cl.evt.gz' / Input file name
SEQPNUM =                    3 / Number of times this dataset processed
PROCVER = '3.0.22.44'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20160607_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae809001230xi0_0_5x5n066t_cl.evt.gz' / Input file name
FILIN003= 'ae809001230xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae809001230xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae809001230xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae809001230xi3_0_5x5n066a_cl.evt.gz' / Input file name
COMMENT -------------------------
COMMENT BITPIX compressed from 32 to 8.
COMMENT Pixel values greater than 255 was set to 255.
COMMENT This file was made for JUDO-Suzaku.
COMMENT -------------------------
COMMENT   FITS (Flexible Image Transport System) format is defined in 'Astronomy

Abstract:

The Cosmic X-ray Background (CXB) was discovered almost 50 years ago. Despite many attempts to measure its spectrum, the normalization of the spectrum of the CXB in the 2-10 keV band has considerable uncertainty, of the order of 30% or more. The CXB represents an important integral of the total accretion power of supermassive black holes. We propose to use the dark side of the Moon as a shutter, thereby enabling a clear and unambiguous measurement of the CXB to be made with Suzaku. The motion of the Moon during a 45 ks observation extends over 5 deg, so by tracking the Moon we shall obtain an angle-averaged spectrum. Data from the Moon itself will be analysed and mosaicked to form an X-ray colour image highlighting different fluorescent lines from the bright side.