[vsnet-grb 423600] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Oct 19 14:45:31 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     929981,   Seg_Num: 0
GRB_RA:          245.1262d {+16h 20m 30.28s} (J2000),
                 245.7195d {+16h 22m 52.67s} (current),
                 243.6393d {+16h 14m 33.42s} (1950)
GRB_DEC:         -73.5408d {-73d 32' 26.8"} (J2000),
                 -73.5866d {-73d 35' 11.8"} (current),
                 -73.4204d {-73d 25' 13.4"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18773 TJD;   290 DOY;   19/10/17
IMG_START_TIME:  52823.00 SOD {14:40:23.00} UT,   256.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       202.16d {+13h 28m 40s}   -9.29d {-09d 17' 15"}
SUN_DIST:         69.09 [deg]   Sun_angle= -2.9 [hr] (East of Sun)
MOON_POSTN:       65.22d {+04h 20m 52s}  +18.53d {+18d 31' 38"}
MOON_DIST:       124.94 [deg]
MOON_ILLUM:      87 [%]
GAL_COORDS:      316.44,-16.44 [deg] galactic lon,lat of the burst
ECL_COORDS:      259.07,-51.04 [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%.