[vsnet-grb 152015] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 25 Jun 11 00:42:18 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     456014,   Seg_Num: 0
GRB_RA:          282.5136d {+18h 50m 03.26s} (J2000),
                 282.6617d {+18h 50m 38.80s} (current),
                 281.8685d {+18h 47m 28.43s} (1950)
GRB_DEC:          -0.9395d {-00d 56' 22.2"} (J2000),
                  -0.9256d {-00d 55' 32.0"} (current),
                  -0.9983d {-00d 59' 53.8"} (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:  15737 TJD;   176 DOY;   11/06/25
IMG_START_TIME:  1189.00 SOD {00:19:49.00} UT,   821.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        93.43d {+06h 13m 44s}  +23.40d {+23d 23' 59"}
SUN_DIST:        155.81 [deg]   Sun_angle= 11.4 [hr] (West of Sun)
MOON_POSTN:       16.56d {+01h 06m 14s}  +12.19d {+12d 11' 20"}
MOON_DIST:        94.00 [deg]
MOON_ILLUM:      36 [%]
GAL_COORDS:       31.94, -0.12 [deg] galactic lon,lat of the burst
ECL_COORDS:      283.50, 21.92 [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 2.8% < P(seren) < 6.6%.