[vsnet-grb 335228] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 03 Aug 17 17:46:32 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     766081,   Seg_Num: 0
GRB_RA:          174.9337d {+11h 39m 44.08s} (J2000),
                 175.1566d {+11h 40m 37.57s} (current),
                 174.3008d {+11h 37m 12.18s} (1950)
GRB_DEC:         -16.3105d {-16d 18' 37.8"} (J2000),
                 -16.4081d {-16d 24' 28.9"} (current),
                 -16.0333d {-16d 01' 59.9"} (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:  17968 TJD;   215 DOY;   17/08/03
IMG_START_TIME:  63147.00 SOD {17:32:27.00} UT,   120.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       134.04d {+08h 56m 09s}  +17.31d {+17d 18' 33"}
SUN_DIST:         52.71 [deg]   Sun_angle= -2.7 [hr] (East of Sun)
MOON_POSTN:      266.50d {+17h 45m 59s}  -18.91d {-18d 54' 31"}
MOON_DIST:        85.97 [deg]
MOON_ILLUM:      85 [%]
GAL_COORDS:      279.02, 43.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      182.03,-16.94 [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%.