Suzaku Observation : 706030090

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '706030090'          / Observation identification string
OBSERVER= 'JOSEPH NEILSEN'     / Principal Investigator
OBJECT  = 'SMC X-1 '           / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              19.2715 / planned target R.A.(deg)
DEC_OBJ =             -73.4433 / planned target DEC.(deg)
RA_NOM  = 1.927660000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = -7.343760000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             244.9870 / nominal position angle from north to DETY(deg)
MEAN_EA1=      19.276637264087 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=     163.437550019201 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     205.012961026763 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2011-12-12T21:33:51' / Start date of observations
DATE-END= '2011-12-13T06:30:12' / End date of observations
TSTART  = 3.770437650000000E+08 / time start
TSTOP   = 3.770729931305310E+08 / time stop
TELAPSE = 2.922813053101301E+04 / elapsed time
ONTIME  = 1.740786584037542E+04 / On-source time
EXPOSURE= 1.740786584037542E+04 / Exposure time
MJD-OBS = 5.590793320814815E+04 / MJD of data start time
FILIN001= 'ae706030090xi0_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= 'ae706030090xi1_0_3x3n130b_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 a sequence of 10 18-ks observations of the wind-fed accreting X-ray pulsar SMC X-1. Distributed throughout the orbital and super-orbital period of this high-mass X-ray binary, our proposed observations will reveal the influence of wind accretion on the structure and evolution of accretion disks via three independent methods: (1) mapping the geometry of the accretion flow through soft X-ray emission line variability and ionization studies, (2) tracing the structure of the accretion disk corona with hard X-ray scattering studies, and (3) tracking the evolution of the neutron star spin period and pulse profile for comparison to changes in the warped, precessing accretion disk.