Suzaku Observation : 410018010

QL FITS Image

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Fits Header
TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '410018010'          / Observation identification string
OBSERVER= 'JOHN A. TOMSICK'    / Principal Investigator
OBJECT  = 'CYGNUS X-1'         / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             299.5903 / planned target R.A.(deg)
DEC_OBJ =              35.2016 / planned target DEC.(deg)
RA_NOM  = 2.995777000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 3.521120000000000E+01 / Declination of target (deci. deg)
PA_NOM  =              52.2303 / nominal position angle from north to DETY(deg)
MEAN_EA1=     299.577660303536 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      54.788823039005 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=      37.769661348868 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2015-05-27T11:23:44' / Start date of observations
DATE-END= '2015-05-28T18:47:13' / End date of observations
TSTART  = 4.860444591349256E+08 / time start
TSTOP   = 4.861540091087646E+08 / time stop
TELAPSE = 1.095499738390446E+05 / elapsed time
ONTIME  = 1.289248002254963E+04 / On-source time
EXPOSURE= 1.289248002254963E+04 / Exposure time
MJD-OBS = 5.716951531619127E+04 / MJD of data start time
FILIN001= 'ae410018010xi0_0_3x3b122s_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= 'ae410018010xi0_0_5x5b122s_cl.evt.gz' / Input file name
FILIN003= 'ae410018010xi0_0_5x5n066r_cl.evt.gz' / Input file name
FILIN004= 'ae410018010xi0_0_5x5n066s_cl.evt.gz' / Input file name
FILIN005= 'ae410018010xi1_0_3x3b136b_cl.evt.gz' / Input file name
FILIN006= 'ae410018010xi1_0_5x5b136b_cl.evt.gz' / Input file name
FILIN007= 'ae410018010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN008= 'ae410018010xi3_0_3x3b123a_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:

We propose to observe Cygnus X-1 with NuSTAR (for 30 ks) and Suzaku (for 50 ks) in any spectral state in order to measure the reflection component and constrain the properties of the inner accretion disk, including the location of the inner radius, the geometry of the hard X-ray source, and the inclination. Observations made in the first two years of the NuSTAR mission have raised the interesting possibility that the inner disk inclination may differ from the orbital inclination, and this could occur if the black hole spin is misaligned. The proposed NuSTAR/Suzaku observation would be at the orbital phase where absorption due to stellar wind material is at a minimum, providing a clean measurement of the iron line profile and a significant improvement over the existing observations.