[vsnet-grb 156158] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 20 Aug 11 17:46:09 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     501095,   Seg_Num: 0
GRB_RA:          343.1911d {+22h 52m 45.86s} (J2000),
                 343.2879d {+22h 53m 09.09s} (current),
                 342.7764d {+22h 51m 06.34s} (1950)
GRB_DEC:         +70.2968d {+70d 17' 48.4"} (J2000),
                 +70.3588d {+70d 21' 31.7"} (current),
                 +70.0306d {+70d 01' 50.1"} (1950)
GRB_ERROR:       3.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15793 TJD;   232 DOY;   11/08/20
IMG_START_TIME:  63598.00 SOD {17:39:58.00} UT,   90.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       149.56d {+09h 58m 15s}  +12.39d {+12d 23' 10"}
SUN_DIST:         96.71 [deg]   Sun_angle= 11.1 [hr] (West of Sun)
MOON_POSTN:       40.99d {+02h 43m 58s}  +19.02d {+19d 01' 04"}
MOON_DIST:        61.53 [deg]
MOON_ILLUM:      61 [%]
GAL_COORDS:      113.18,  9.70 [deg] galactic lon,lat of the burst
ECL_COORDS:       41.45, 64.49 [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%.