[vsnet-grb 300531] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 21 Aug 16 22:41:12 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     709357,   Seg_Num: 0
GRB_RA:          279.9780d {+18h 39m 54.72s} (J2000),
                 280.0167d {+18h 40m 04.00s} (current),
                 279.8613d {+18h 39m 26.72s} (1950)
GRB_DEC:         +62.3920d {+62d 23' 31.2"} (J2000),
                 +62.4081d {+62d 24' 29.0"} (current),
                 +62.3440d {+62d 20' 38.5"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17621 TJD;   234 DOY;   16/08/21
IMG_START_TIME:  81225.00 SOD {22:33:45.00} UT,   271.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       151.41d {+10h 05m 38s}  +11.72d {+11d 43' 14"}
SUN_DIST:         95.91 [deg]   Sun_angle= -8.6 [hr] (East of Sun)
MOON_POSTN:       16.15d {+01h 04m 35s}   +3.82d {+03d 48' 55"}
MOON_DIST:        89.45 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:       92.18, 25.14 [deg] galactic lon,lat of the burst
ECL_COORDS:      320.47, 84.02 [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%.