[vsnet-grb 262160] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 30 May 15 11:57:02 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     642018,   Seg_Num: 0
GRB_RA:          327.5108d {+21h 50m 02.59s} (J2000),
                 327.6359d {+21h 50m 32.61s} (current),
                 327.1054d {+21h 48m 25.29s} (1950)
GRB_DEC:         +57.5163d {+57d 30' 58.6"} (J2000),
                 +57.5887d {+57d 35' 19.3"} (current),
                 +57.2820d {+57d 16' 55.1"} (1950)
GRB_ERROR:       3.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17172 TJD;   150 DOY;   15/05/30
IMG_START_TIME:  42248.00 SOD {11:44:08.00} UT,   109.8 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        67.06d {+04h 28m 14s}  +21.76d {+21d 45' 44"}
SUN_DIST:         76.61 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
MOON_POSTN:      209.76d {+13h 59m 03s}  -10.13d {-10d 07' 33"}
MOON_DIST:       113.27 [deg]
MOON_ILLUM:      90 [%]
GAL_COORDS:      100.44,  2.79 [deg] galactic lon,lat of the burst
ECL_COORDS:        8.89, 62.71 [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%.