[vsnet-grb 432302] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Jan 20 01:58:23 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     948361,   Seg_Num: 0
GRB_RA:          307.1258d {+20h 28m 30.19s} (J2000),
                 307.2644d {+20h 29m 03.45s} (current),
                 306.7796d {+20h 27m 07.09s} (1950)
GRB_DEC:         +52.9932d {+52d 59' 35.5"} (J2000),
                 +53.0606d {+53d 03' 38.0"} (current),
                 +52.8258d {+52d 49' 33.0"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18857 TJD;     9 DOY;   20/01/09
IMG_START_TIME:  6535.00 SOD {01:48:55.00} UT,   158.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       289.77d {+19h 19m 05s}  -22.19d {-22d 11' 31"}
SUN_DIST:         76.77 [deg]   Sun_angle= -1.2 [hr] (East of Sun)
MOON_POSTN:       85.87d {+05h 43m 28s}  +22.22d {+22d 13' 08"}
MOON_DIST:        96.61 [deg]
MOON_ILLUM:      96 [%]
GAL_COORDS:       89.26,  8.28 [deg] galactic lon,lat of the burst
ECL_COORDS:      341.34, 67.45 [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 1.1% < P(seren) < 2.8%.