[vsnet-grb 204942] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 08 Jun 13 23:26:29 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     557771,   Seg_Num: 0
GRB_RA:           24.6086d {+01h 38m 26.06s} (J2000),
                  24.8085d {+01h 39m 14.02s} (current),
                  23.8674d {+01h 35m 28.17s} (1950)
GRB_DEC:         +41.5026d {+41d 30' 09.3"} (J2000),
                 +41.5706d {+41d 34' 13.9"} (current),
                 +41.2487d {+41d 14' 55.4"} (1950)
GRB_ERROR:       2.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16451 TJD;   159 DOY;   13/06/08
IMG_START_TIME:  83911.00 SOD {23:18:31.00} UT,   249.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        77.30d {+05h 09m 12s}  +22.92d {+22d 55' 24"}
SUN_DIST:         47.31 [deg]   Sun_angle= 3.5 [hr] (West of Sun)
MOON_POSTN:       81.10d {+05h 24m 23s}  +20.18d {+20d 10' 35"}
MOON_DIST:        51.78 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      132.30,-20.51 [deg] galactic lon,lat of the burst
ECL_COORDS:       38.92, 28.94 [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%.