[vsnet-grb 357171] GCN/SWIFT_BAT_LIGHTCURVE

Bacodine vxw at capella2.gsfc.nasa.gov
Thu Feb 22 09:49:42 JST 2018


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 22 Feb 18 00:49:33 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     811167,   Seg_Num: 0
GRB_RA:          273.387d {+18h 13m 33s} (J2000),
                 273.636d {+18h 14m 33s} (current),
                 272.700d {+18h 10m 48s} (1950)
GRB_DEC:          -9.501d {-09d 30' 02"} (J2000),
                  -9.495d {-09d 29' 40"} (current),
                  -9.516d {-09d 30' 55"} (1950)
GRB_DATE:        18171 TJD;    53 DOY;   18/02/22
GRB_TIME:        1227.48 SOD {00:20:27.48} UT
TRIGGER_INDEX:   20000
GRB_PHI:          34.66 [deg]
GRB_THETA:        10.45 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1552.000 [sec]   (=25.9 [min])
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.73 [sigma]
LC_URL:          sw00811167000msb.lc
SUN_POSTN:       335.27d {+22h 21m 05s}  -10.28d {-10d 16' 42"}
SUN_DIST:         60.63 [deg]   Sun_angle= 4.1 [hr] (West of Sun)
MOON_POSTN:       45.72d {+03h 02m 53s}  +11.74d {+11d 44' 20"}
MOON_DIST:       132.91 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:       20.14,  3.97 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      273.44, 13.90 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is an image trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 169.30,11.92 [deg].  
COMMENTS:        This lightcurve contains more than 50 illegal values -- probably an empty lightcurve.  
COMMENTS:        So the FITS file will have empty/missing rows -- possibly all rows will be missing.  
COMMENTS:        One explanation is a long Image-trigger(>~10min); another is corrupted tlm.  



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