[vsnet-grb 355647] GCN/SWIFT_XRT_POSITION

Bacodine vxw at capella2.gsfc.nasa.gov
Fri Feb 9 08:05:58 JST 2018


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 08 Feb 18 23:05:51 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     809217,   Seg_Num: 0
GRB_RA:           20.7371d {+01h 22m 56.90s} (J2000),
                  20.9738d {+01h 23m 53.71s} (current),
                  20.0842d {+01h 20m 20.19s} (1950)
GRB_DEC:          +7.4200d {+07d 25' 11.9"} (J2000),
                  +7.5142d {+07d 30' 51.1"} (current),
                  +7.1591d {+07d 09' 32.6"} (1950)
GRB_ERROR:       4.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       7.63e-09 [erg/cm2/sec]
GRB_SIGNIF:      13.34 [sigma]
IMG_START_DATE:  18157 TJD;    39 DOY;   18/02/08
IMG_START_TIME:  83126.85 SOD {23:05:26.85} UT,   387.3 [sec] since BAT Trigger Time
TAM[0-3]:        327.64 237.16 261.66 243.61
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       322.55d {+21h 30m 11s}  -14.77d {-14d 46' 05"}
SUN_DIST:         62.06 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      243.60d {+16h 14m 23s}  -16.12d {-16d 06' 53"}
MOON_DIST:       137.49 [deg]
MOON_ILLUM:      38 [%]
GAL_COORDS:      136.51,-54.62 [deg] galactic lon,lat of the burst
ECL_COORDS:       21.94, -1.21 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This matches a source in the BAT ground catalog: HD 8357,   delta=0.001 [deg].  
COMMENTS:        The XRT position is 3.25 arcmin from the BAT position.  
COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .  



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