[vsnet-grb 493794] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 30 Jul 21 05:28:42 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1062150,   Seg_Num: 0
GRB_RA:          149.5914d {+09h 58m 21.93s} (J2000),
                 150.0306d {+10h 00m 07.34s} (current),
                 148.5618d {+09h 54m 14.83s} (1950)
GRB_DEC:         +69.6922d {+69d 41' 31.9"} (J2000),
                 +69.5884d {+69d 35' 18.1"} (current),
                 +69.9310d {+69d 55' 51.7"} (1950)
GRB_ERROR:       8.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19425 TJD;   211 DOY;   21/07/30
IMG_START_TIME:  18010.00 SOD {05:00:10.00} UT,   160.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       129.70d {+08h 38m 47s}  +18.45d {+18d 26' 46"}
SUN_DIST:         52.64 [deg]   Sun_angle= -1.4 [hr] (East of Sun)
MOON_POSTN:       22.39d {+01h 29m 35s}   +5.40d {+05d 24' 11"}
MOON_DIST:        97.11 [deg]
MOON_ILLUM:      63 [%]
GAL_COORDS:      141.23, 40.73 [deg] galactic lon,lat of the burst
ECL_COORDS:      119.26, 52.24 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
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 0.11% < P(seren) < 0.58%.