[vsnet-grb 185674] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 23 Sep 12 05:28:44 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     534402,   Seg_Num: 0
GRB_RA:          303.7950d {+20h 15m 10.80s} (J2000),
                 303.9516d {+20h 15m 48.39s} (current),
                 303.1795d {+20h 12m 43.07s} (1950)
GRB_DEC:          +6.2207d {+06d 13' 14.5"} (J2000),
                  +6.2602d {+06d 15' 36.6"} (current),
                  +6.0671d {+06d 04' 01.5"} (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:  16193 TJD;   267 DOY;   12/09/23
IMG_START_TIME:  19137.00 SOD {05:18:57.00} UT,   170.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       180.54d {+12h 02m 10s}   -0.24d {-00d 14' 07"}
SUN_DIST:        123.21 [deg]   Sun_angle= -8.2 [hr] (East of Sun)
MOON_POSTN:      276.34d {+18h 25m 21s}  -20.18d {-20d 11' 02"}
MOON_DIST:        37.90 [deg]
MOON_ILLUM:      55 [%]
GAL_COORDS:       48.48,-15.47 [deg] galactic lon,lat of the burst
ECL_COORDS:      307.72, 25.34 [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%.