[vsnet-grb 204113] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 29 May 13 11:35:13 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     556930,   Seg_Num: 0
GRB_RA:           24.2820d {+01h 37m 07.68s} (J2000),
                  24.3904d {+01h 37m 33.69s} (current),
                  23.8772d {+01h 35m 30.53s} (1950)
GRB_DEC:         -64.1474d {-64d 08' 50.6"} (J2000),
                 -64.0794d {-64d 04' 45.8"} (current),
                 -64.4016d {-64d 24' 05.6"} (1950)
GRB_ERROR:       2.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16441 TJD;   149 DOY;   13/05/29
IMG_START_TIME:  40940.00 SOD {11:22:20.00} UT,   414.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        66.52d {+04h 26m 04s}  +21.68d {+21d 40' 57"}
SUN_DIST:         91.78 [deg]   Sun_angle= 2.8 [hr] (West of Sun)
MOON_POSTN:      309.35d {+20h 37m 25s}  -13.19d {-13d 11' 34"}
MOON_DIST:        71.63 [deg]
MOON_ILLUM:      75 [%]
GAL_COORDS:      294.82,-52.26 [deg] galactic lon,lat of the burst
ECL_COORDS:      334.05,-63.76 [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%.