[vsnet-grb 270160] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 31 Aug 15 10:48:23 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     653838,   Seg_Num: 0
GRB_RA:          221.0244d {+14h 44m 05.85s} (J2000),
                 221.2527d {+14h 45m 00.63s} (current),
                 220.2972d {+14h 41m 11.33s} (1950)
GRB_DEC:         -25.6356d {-25d 38' 08.1"} (J2000),
                 -25.7013d {-25d 42' 04.5"} (current),
                 -25.4244d {-25d 25' 27.8"} (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:  17265 TJD;   243 DOY;   15/08/31
IMG_START_TIME:  38254.00 SOD {10:37:34.00} UT,   201.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       159.40d {+10h 37m 37s}   +8.67d {+08d 40' 11"}
SUN_DIST:         69.21 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:        1.04d {+00h 04m 09s}   +0.55d {+00d 33' 02"}
MOON_DIST:       133.80 [deg]
MOON_ILLUM:      96 [%]
GAL_COORDS:      332.59, 30.67 [deg] galactic lon,lat of the burst
ECL_COORDS:      226.43, -9.30 [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:        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%.