[vsnet-grb 486294] GCN/SWIFT_XRT_POSITION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 27 May 21 08:04:29 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     1051453,   Seg_Num: 0
GRB_RA:          172.3231d {+11h 29m 17.54s} (J2000),
                 172.6069d {+11h 30m 25.66s} (current),
                 171.6586d {+11h 26m 38.05s} (1950)
GRB_DEC:         +31.6240d {+31d 37' 26.3"} (J2000),
                 +31.5059d {+31d 30' 21.1"} (current),
                 +31.8997d {+31d 53' 58.8"} (1950)
GRB_ERROR:       7.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19361 TJD;   147 DOY;   21/05/27
IMG_START_TIME:  28837.00 SOD {08:00:37.00} UT,   3168.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        64.40d {+04h 17m 36s}  +21.35d {+21d 21' 06"}
SUN_DIST:         93.32 [deg]   Sun_angle= -7.2 [hr] (East of Sun)
MOON_POSTN:      257.59d {+17h 10m 23s}  -23.65d {-23d 39' 16"}
MOON_DIST:        98.13 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      193.90, 71.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      159.65, 25.84 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.