[vsnet-grb 192911] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 29 Dec 12 05:14:08 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     544347,   Seg_Num: 0
GRB_RA:          190.1008d {+12h 40m 24.19s} (J2000),
                 190.2829d {+12h 41m 07.89s} (current),
                 189.4032d {+12h 37m 36.76s} (1950)
GRB_DEC:         -50.5940d {-50d 35' 38.4"} (J2000),
                 -50.6652d {-50d 39' 54.7"} (current),
                 -50.3196d {-50d 19' 10.6"} (1950)
GRB_ERROR:       2.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16290 TJD;   364 DOY;   12/12/29
IMG_START_TIME:  18315.00 SOD {05:05:15.00} UT,   293.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       278.59d {+18h 34m 22s}  -23.20d {-23d 12' 06"}
SUN_DIST:         71.22 [deg]   Sun_angle= 5.9 [hr] (West of Sun)
MOON_POSTN:      107.52d {+07h 10m 05s}  +18.46d {+18d 27' 41"}
MOON_DIST:        99.74 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      301.14, 12.24 [deg] galactic lon,lat of the burst
ECL_COORDS:      213.23,-41.65 [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%.