[vsnet-grb 271513] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 15 Sep 15 21:43:50 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     655721,   Seg_Num: 0
GRB_RA:          319.6588d {+21h 18m 38.11s} (J2000),
                 319.8994d {+21h 19m 35.85s} (current),
                 318.8910d {+21h 15m 33.84s} (1950)
GRB_DEC:         -34.9131d {-34d 54' 47.1"} (J2000),
                 -34.8463d {-34d 50' 46.8"} (current),
                 -35.1241d {-35d 07' 26.7"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17280 TJD;   258 DOY;   15/09/15
IMG_START_TIME:  77077.00 SOD {21:24:37.00} UT,   372.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       173.32d {+11h 33m 18s}   +2.88d {+02d 53' 05"}
SUN_DIST:        135.47 [deg]   Sun_angle= -9.8 [hr] (East of Sun)
MOON_POSTN:      200.34d {+13h 21m 23s}   -6.57d {-06d 34' 29"}
MOON_DIST:       109.68 [deg]
MOON_ILLUM:      6 [%]
GAL_COORDS:        9.44,-44.28 [deg] galactic lon,lat of the burst
ECL_COORDS:      311.17,-18.30 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.