Suzaku Observation : 807060010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '807060010'          / Observation identification string
OBSERVER= 'ERIC D. MILLER'     / Principal Investigator
OBJECT  = 'SDSS J1302+4729'    / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             195.5230 / planned target R.A.(deg)
DEC_OBJ =              47.4970 / planned target DEC.(deg)
RA_NOM  = 1.955068000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 4.748310000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             316.2365 / nominal position angle from north to DETY(deg)
MEAN_EA1=     195.506784852968 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      42.516908841629 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     133.763451295804 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2012-05-29T06:30:20' / Start date of observations
DATE-END= '2012-05-29T16:56:23' / End date of observations
TSTART  = 3.915907300000000E+08 / time start
TSTOP   = 3.916257672101380E+08 / time stop
TELAPSE = 3.503721013802290E+04 / elapsed time
ONTIME  = 2.042699987339973E+04 / On-source time
EXPOSURE= 2.042699987339973E+04 / Exposure time
MJD-OBS = 5.607630085861111E+04 / MJD of data start time
FILIN001= 'ae807060010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    2 / 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= 'ae807060010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN003= 'ae807060010xi3_0_3x3n066a_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:

Fossil groups (FGs) are systems dominated by a single large galaxy with a cluster-scale X-ray halo. They are thought to be old, isolated galaxy groups in which the large galaxies have coalesced through dynamical friction, but recent studies reveal a more complicated picture. We propose Suzaku observations of 5 optically selected FG candidates. These targets will extend our previous survey, which identified 12 FGs; when combined with 5 FG candidates approved for the current Chandra cycle, this will create the largest uniformly-selected sample of real FGs. The L_X and T_X measured will be used with optical spectroscopy to extend FG scaling relations to low mass, and to plan deeper X-ray spectroscopic follow-up to constrain the formation epoch and evolution of these puzzling systems.