[vsnet-grb 457624] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 06 Sep 20 13:23:53 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     994856,   Seg_Num: 0
GRB_RA:          272.2730d {+18h 09m 05.52s} (J2000),
                 272.2549d {+18h 09m 01.18s} (current),
                 272.3166d {+18h 09m 15.99s} (1950)
GRB_DEC:         +67.8790d {+67d 52' 44.4"} (J2000),
                 +67.8835d {+67d 53' 00.7"} (current),
                 +67.8679d {+67d 52' 04.2"} (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:  19098 TJD;   250 DOY;   20/09/06
IMG_START_TIME:  47628.00 SOD {13:13:48.00} UT,   163.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       165.64d {+11h 02m 34s}   +6.14d {+06d 08' 09"}
SUN_DIST:         90.46 [deg]   Sun_angle= -7.1 [hr] (East of Sun)
MOON_POSTN:       31.56d {+02h 06m 15s}   +8.57d {+08d 34' 06"}
MOON_DIST:        92.53 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:       97.91, 28.95 [deg] galactic lon,lat of the burst
ECL_COORDS:       57.32, 88.42 [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 0.11% < P(seren) < 0.58%.