[vsnet-grb 491212] GCN/SWIFT_BAT_POSITION

Bacodine vxw at capella2.gsfc.nasa.gov
Thu Jul 8 11:25:59 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 08 Jul 21 02:25:58 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1059460,   Seg_Num: 0
GRB_RA:          173.699d {+11h 34m 48s} (J2000),
                 173.960d {+11h 35m 50s} (current),
                 173.095d {+11h 32m 23s} (1950)
GRB_DEC:         -49.187d {-49d 11' 11"} (J2000),
                 -49.306d {-49d 18' 20"} (current),
                 -48.910d {-48d 54' 36"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2438 [cnts]    Image_Peak=131 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       15895 [cnts]
BKG_TIME:        8724.66 SOD {02:25:24.66} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19403 TJD;   189 DOY;   21/07/08
GRB_TIME:        8737.08 SOD {02:25:37.08} UT
GRB_PHI:         129.38 [deg]
GRB_THETA:        12.98 [deg]
SOLN_STATUS:     0x2083
RATE_SIGNIF:     8.42 [sigma]
IMAGE_SIGNIF:    6.82 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  -3  +0  +0  +4  +0 
SUN_POSTN:       107.54d {+07h 10m 09s}  +22.46d {+22d 27' 24"}
SUN_DIST:         92.78 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:       83.77d {+05h 35m 06s}  +24.47d {+24d 28' 14"}
MOON_DIST:       108.42 [deg]
MOON_ILLUM:      4 [%]
GAL_COORDS:      290.27, 11.79 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      199.91,-46.30 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate 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:        There is a bright star (mag=5.50) 3.34 arcmin from this position.  
COMMENTS:        This is a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 234.30,-2.56 [deg].  



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