[vsnet-grb 489266] GCN/SWIFT_BAT_POSITION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 21 Jun 21 17:05:41 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     1057131,   Seg_Num: 0
GRB_RA:          238.812d {+15h 55m 15s} (J2000),
                 239.228d {+15h 56m 55s} (current),
                 237.845d {+15h 51m 23s} (1950)
GRB_DEC:         -54.063d {-54d 03' 45"} (J2000),
                 -54.124d {-54d 07' 27"} (current),
                 -53.917d {-53d 55' 00"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       112 [cnts]    Image_Peak=25 [image_cnts]
TRIGGER_DUR:     0.008 [sec] 
TRIGGER_INDEX:   10109     E_range: 15-50 keV
BKG_INTEN:       21886 [cnts]
BKG_TIME:        61460.76 SOD {17:04:20.76} UT
BKG_DUR:         8 [sec]
GRB_DATE:        19386 TJD;   172 DOY;   21/06/21
GRB_TIME:        61476.76 SOD {17:04:36.76} UT
GRB_PHI:         103.72 [deg]
GRB_THETA:         0.03 [deg]
SOLN_STATUS:     0x83
RATE_SIGNIF:     18.60 [sigma]
IMAGE_SIGNIF:    6.63 [sigma]
MERIT_PARAMS:     +1  +0  +0  -7  +1  -4  +0  +1 +77  +0 
SUN_POSTN:        90.59d {+06h 02m 22s}  +23.43d {+23d 26' 05"}
SUN_DIST:        141.39 [deg]   Sun_angle= -9.9 [hr] (East of Sun)
MOON_POSTN:      225.90d {+15h 03m 35s}  -15.31d {-15d 18' 35"}
MOON_DIST:        40.19 [deg]
MOON_ILLUM:      87 [%]
GAL_COORDS:      327.88, -0.35 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      248.78,-32.90 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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:        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 = 14.14,-13.00 [deg].  
COMMENTS:           
COMMENTS:        NOTE:  This location is less than 10arcmin from the boresight -- Swift was already looking at this source.  
COMMENTS:        This AT will self-cancel at the end of the first orbit (ie I_signif<7.0 && Trig_dur<65msec).