[vsnet-grb 211684] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 31 Aug 13 14:14:28 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     568855,   Seg_Num: 0
GRB_RA:          192.4196d {+12h 49m 40.70s} (J2000),
                 192.6039d {+12h 50m 24.93s} (current),
                 191.7467d {+12h 46m 59.21s} (1950)
GRB_DEC:         -29.1835d {-29d 11' 00.5"} (J2000),
                 -29.2578d {-29d 15' 27.9"} (current),
                 -28.9113d {-28d 54' 40.5"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16535 TJD;   243 DOY;   13/08/31
IMG_START_TIME:  49844.00 SOD {13:50:44.00} UT,   144.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       159.97d {+10h 39m 54s}   +8.44d {+08d 26' 38"}
SUN_DIST:         49.08 [deg]   Sun_angle= -2.2 [hr] (East of Sun)
MOON_POSTN:      103.85d {+06h 55m 24s}  +18.30d {+18d 17' 51"}
MOON_DIST:        97.78 [deg]
MOON_ILLUM:      21 [%]
GAL_COORDS:      302.47, 33.69 [deg] galactic lon,lat of the burst
ECL_COORDS:      203.25,-21.88 [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 1.1% < P(seren) < 2.8%.