[vsnet-grb 290488] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 04 May 16 19:58:47 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     685124,   Seg_Num: 0
GRB_RA:          170.0724d {+11h 20m 17.37s} (J2000),
                 170.3047d {+11h 21m 13.13s} (current),
                 169.3578d {+11h 17m 25.87s} (1950)
GRB_DEC:         +56.0013d {+56d 00' 04.6"} (J2000),
                 +55.9117d {+55d 54' 41.9"} (current),
                 +56.2752d {+56d 16' 30.8"} (1950)
GRB_ERROR:       2.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17512 TJD;   125 DOY;   16/05/04
IMG_START_TIME:  70366.00 SOD {19:32:46.00} UT,   128.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        42.31d {+02h 49m 14s}  +16.27d {+16d 16' 04"}
SUN_DIST:         95.69 [deg]   Sun_angle= -8.5 [hr] (East of Sun)
MOON_POSTN:       16.45d {+01h 05m 48s}   +4.45d {+04d 26' 43"}
MOON_DIST:       115.94 [deg]
MOON_ILLUM:      6 [%]
GAL_COORDS:      146.24, 56.81 [deg] galactic lon,lat of the burst
ECL_COORDS:      142.79, 46.24 [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%.