[vsnet-grb 303816] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 27 Sep 16 18:17:09 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     713782,   Seg_Num: 0
GRB_RA:          256.2429d {+17h 04m 58.29s} (J2000),
                 256.4291d {+17h 05m 42.99s} (current),
                 255.6868d {+17h 02m 44.84s} (1950)
GRB_DEC:         +17.3314d {+17d 19' 53.0"} (J2000),
                 +17.3094d {+17d 18' 33.7"} (current),
                 +17.3989d {+17d 23' 56.1"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17658 TJD;   271 DOY;   16/09/27
IMG_START_TIME:  65178.00 SOD {18:06:18.00} UT,   88.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       184.65d {+12h 18m 36s}   -2.01d {-02d 00' 46"}
SUN_DIST:         73.27 [deg]   Sun_angle= -4.8 [hr] (East of Sun)
MOON_POSTN:      149.90d {+09h 59m 35s}  +10.88d {+10d 52' 44"}
MOON_DIST:       102.16 [deg]
MOON_ILLUM:      10 [%]
GAL_COORDS:       37.63, 31.10 [deg] galactic lon,lat of the burst
ECL_COORDS:      252.77, 39.95 [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%.