[vsnet-grb 168731] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 Feb 12 14:44:32 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     515375,   Seg_Num: 0
GRB_RA:          129.7898d {+08h 39m 09.55s} (J2000),
                 130.0093d {+08h 40m 02.23s} (current),
                 128.8822d {+08h 35m 31.73s} (1950)
GRB_DEC:         +51.0315d {+51d 01' 53.4"} (J2000),
                 +50.9882d {+50d 59' 17.3"} (current),
                 +51.2080d {+51d 12' 28.7"} (1950)
GRB_ERROR:       2.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15976 TJD;    50 DOY;   12/02/19
IMG_START_TIME:  52500.00 SOD {14:35:00.00} UT,   291.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       332.43d {+22h 09m 43s}  -11.35d {-11d 20' 44"}
SUN_DIST:        136.34 [deg]   Sun_angle= -10.5 [hr] (East of Sun)
MOON_POSTN:      303.63d {+20h 14m 30s}  -15.77d {-15d 45' 55"}
MOON_DIST:       144.41 [deg]
MOON_ILLUM:      6 [%]
GAL_COORDS:      167.86, 37.45 [deg] galactic lon,lat of the burst
ECL_COORDS:      118.14, 31.41 [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%.