[vsnet-grb 188703] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 02 Nov 12 02:42:55 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     537266,   Seg_Num: 0
GRB_RA:          270.9008d {+18h 03m 36.19s} (J2000),
                 271.0871d {+18h 04m 20.89s} (current),
                 270.1754d {+18h 00m 42.09s} (1950)
GRB_DEC:         -16.9577d {-16d 57' 27.7"} (J2000),
                 -16.9565d {-16d 57' 23.2"} (current),
                 -16.9603d {-16d 57' 37.1"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16233 TJD;   307 DOY;   12/11/02
IMG_START_TIME:  9074.00 SOD {02:31:14.00} UT,   251.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       217.67d {+14h 30m 41s}  -14.84d {-14d 50' 18"}
SUN_DIST:         51.26 [deg]   Sun_angle= -3.6 [hr] (East of Sun)
MOON_POSTN:       74.78d {+04h 59m 06s}  +20.86d {+20d 51' 43"}
MOON_DIST:       164.09 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       12.43,  2.49 [deg] galactic lon,lat of the burst
ECL_COORDS:      270.87,  6.48 [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%.