Suzaku Observation : 701080010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '701080010'          / Observation identification string
OBSERVER= 'ANDREA COMASTRI'    / Principal Investigator
OBJECT  = 'NGC 4992'           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             197.2733 / planned target R.A.(deg)
DEC_OBJ =              11.6342 / planned target DEC.(deg)
RA_NOM  = 1.972442000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 1.157760000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             297.9177 / nominal position angle from north to DETY(deg)
MEAN_EA1=     197.244185943011 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      78.422419260654 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     152.082291855145 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2006-06-18T05:29:25' / Start date of observations
DATE-END= '2006-06-19T05:04:13' / End date of observations
TSTART  = 2.039272367473041E+08 / time start
TSTOP   = 2.040086359852913E+08 / time stop
TELAPSE = 8.139923798716068E+04 / elapsed time
ONTIME  = 3.878866095191240E+04 / On-source time
EXPOSURE= 3.878866095191240E+04 / Exposure time
MJD-OBS = 5.390426968670491E+04 / MJD of data start time
FILIN001= 'ae701080010xi0_0_3x3n000a_cl.evt.gz' / Input file name
SEQPNUM =                    3 / Number of times this dataset processed
PROCVER = '3.0.22.43'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20151005_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae701080010xi0_0_5x5n000a_cl.evt.gz' / Input file name
FILIN003= 'ae701080010xi1_0_3x3n001b_cl.evt.gz' / Input file name
FILIN004= 'ae701080010xi1_0_5x5n001b_cl.evt.gz' / Input file name
FILIN005= 'ae701080010xi2_0_3x3n000a_cl.evt.gz' / Input file name
FILIN006= 'ae701080010xi2_0_5x5n000a_cl.evt.gz' / Input file name
FILIN007= 'ae701080010xi3_0_3x3n000a_cl.evt.gz' / Input file name
FILIN008= 'ae701080010xi3_0_5x5n000a_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 high-energy detectors onboard Swift and INTEGRAL have started to survey the hard X-ray sky above 10 keV. Although limited to bright X-ray fluxes (~10^-11 cgs), the large area surveyed so far has allowed to build up sizable sa mples of hard X-ray selected AGN almost unbiased against X-ray absorption. The AGN content of these surveys is dominated by obscured AGN. We have identified 3 objects which are most likely obscured by Compton-thick matter and very bright above 10 keV. We propose to observe them with Suzaku for 40 ks each to study their broad-band X-ray spectra and unveil previously unknown nearby heavily obscured AGN, with important consequences for the study of the AGN evolution and the synthesis of the X-ray background.