[vsnet-grb 292263] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 25 May 16 09:54:05 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     687522,   Seg_Num: 0
GRB_RA:          149.3845d {+09h 57m 32.28s} (J2000),
                 149.6521d {+09h 58m 36.50s} (current),
                 148.5647d {+09h 54m 15.53s} (1950)
GRB_DEC:         +51.2064d {+51d 12' 23.0"} (J2000),
                 +51.1277d {+51d 07' 39.8"} (current),
                 +51.4450d {+51d 26' 41.9"} (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:  17533 TJD;   146 DOY;   16/05/25
IMG_START_TIME:  33999.00 SOD {09:26:39.00} UT,   91.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        62.66d {+04h 10m 39s}  +21.06d {+21d 03' 38"}
SUN_DIST:         71.91 [deg]   Sun_angle= -5.8 [hr] (East of Sun)
MOON_POSTN:      285.55d {+19h 02m 11s}  -18.11d {-18d 06' 43"}
MOON_DIST:       132.09 [deg]
MOON_ILLUM:      88 [%]
GAL_COORDS:      164.48, 49.47 [deg] galactic lon,lat of the burst
ECL_COORDS:      131.81, 36.03 [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%.