Suzaku Observation : 401011010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '401011010'          / Observation identification string
OBSERVER= 'SHUNJI KITAMOTO'    / Principal Investigator
OBJECT  = 'CYGNUS X-3'         / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =             308.1075 / planned target R.A.(deg)
DEC_OBJ =              40.9577 / planned target DEC.(deg)
RA_NOM  = 3.082593000000000E+02 / Right Ascension of target (deci. deg)
DEC_NOM = 4.098100000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             252.4240 / nominal position angle from north to DETY(deg)
MEAN_EA1=     308.259333878469 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      49.019021740210 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     197.576021211248 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2006-11-13T02:10:01' / Start date of observations
DATE-END= '2006-11-15T08:49:24' / End date of observations
TSTART  = 2.167018618051598E+08 / time start
TSTOP   = 2.168957443343436E+08 / time stop
TELAPSE = 1.938825291837454E+05 / elapsed time
ONTIME  = 2.493777634972334E+04 / On-source time
EXPOSURE= 2.493777634972334E+04 / Exposure time
MJD-OBS = 5.405212414339306E+04 / MJD of data start time
FILIN001= 'ae401011010xi0_0_3x3b077a_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= 'ae401011010xi0_0_5x5b077a_cl.evt.gz' / Input file name
FILIN003= 'ae401011010xi1_0_3x3b078b_cl.evt.gz' / Input file name
FILIN004= 'ae401011010xi1_0_5x5b078b_cl.evt.gz' / Input file name
FILIN005= 'ae401011010xi3_0_3x3b077a_cl.evt.gz' / Input file name
FILIN006= 'ae401011010xi3_0_5x5b077a_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 an observation of the unusual X-ray binary Cygnus X-3. Cyg X-3 is a final stage of the massive binary stars consisting of a WR(N) star and a compact star. However the nature of the compact star is not well understood. We have fore scientific objective. (A)Determine the Doppler modulation of iron K lines and discuss the binary nature. (2) Determine the iron abundance in the WR wind. (3) Search for the high energy cut off about 100keV of the power law component. (4) Search for the X-ray emission from radio knots. For these four sciences, we propose 100ksec observation of Cyg X-3.