[vsnet-grb 302559] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 12 Sep 16 16:33:19 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     711914,   Seg_Num: 0
GRB_RA:          301.4975d {+20h 05m 59.40s} (J2000),
                 301.5867d {+20h 06m 20.79s} (current),
                 301.2300d {+20h 04m 55.20s} (1950)
GRB_DEC:         +57.5656d {+57d 33' 56.1"} (J2000),
                 +57.6142d {+57d 36' 51.2"} (current),
                 +57.4207d {+57d 25' 14.5"} (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:  17643 TJD;   256 DOY;   16/09/12
IMG_START_TIME:  58741.00 SOD {16:19:01.00} UT,   677.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       171.12d {+11h 24m 29s}   +3.83d {+03d 49' 40"}
SUN_DIST:        106.89 [deg]   Sun_angle= -8.7 [hr] (East of Sun)
MOON_POSTN:      298.49d {+19h 53m 58s}  -17.03d {-17d 01' 37"}
MOON_DIST:        74.69 [deg]
MOON_ILLUM:      80 [%]
GAL_COORDS:       91.43, 13.43 [deg] galactic lon,lat of the burst
ECL_COORDS:      343.34, 72.99 [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%.