[vsnet-grb 195221] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 31 Jan 13 19:25:12 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     547420,   Seg_Num: 0
GRB_RA:          173.9553d {+11h 35m 49.27s} (J2000),
                 174.1250d {+11h 36m 29.99s} (current),
                 173.3064d {+11h 33m 13.53s} (1950)
GRB_DEC:         +15.0381d {+15d 02' 17.1"} (J2000),
                 +14.9656d {+14d 57' 56.3"} (current),
                 +15.3148d {+15d 18' 53.2"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16323 TJD;    31 DOY;   13/01/31
IMG_START_TIME:  69134.00 SOD {19:12:14.00} UT,   125.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       314.55d {+20h 58m 13s}  -17.17d {-17d 10' 01"}
SUN_DIST:        141.97 [deg]   Sun_angle= 9.4 [hr] (West of Sun)
MOON_POSTN:      185.04d {+12h 20m 09s}   -6.10d {-06d 06' 02"}
MOON_DIST:        23.68 [deg]
MOON_ILLUM:      79 [%]
GAL_COORDS:      243.62, 68.66 [deg] galactic lon,lat of the burst
ECL_COORDS:      168.44, 11.40 [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%.