[vsnet-grb 455911] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Aug 20 15:57:46 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     992099,   Seg_Num: 0
GRB_RA:           21.4239d {+01h 25m 41.73s} (J2000),
                  21.7717d {+01h 27m 05.19s} (current),
                  20.5881d {+01h 22m 21.14s} (1950)
GRB_DEC:         +63.0613d {+63d 03' 40.6"} (J2000),
                 +63.1681d {+63d 10' 05.1"} (current),
                 +62.8014d {+62d 48' 05.0"} (1950)
GRB_ERROR:       2.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19080 TJD;   232 DOY;   20/08/19
IMG_START_TIME:  56726.00 SOD {15:45:26.00} UT,   93.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       149.33d {+09h 57m 19s}  +12.47d {+12d 28' 06"}
SUN_DIST:         94.36 [deg]   Sun_angle= 8.5 [hr] (West of Sun)
MOON_POSTN:      158.17d {+10h 32m 40s}  +14.13d {+14d 07' 40"}
MOON_DIST:        95.69 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      126.80,  0.45 [deg] galactic lon,lat of the burst
ECL_COORDS:       50.21, 48.77 [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:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.