[vsnet-grb 162559] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 21 Nov 11 16:40:18 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     508161,   Seg_Num: 0
GRB_RA:          154.7606d {+10h 19m 02.54s} (J2000),
                 154.8830d {+10h 19m 31.92s} (current),
                 154.2466d {+10h 16m 59.17s} (1950)
GRB_DEC:         -46.6709d {-46d 40' 15.2"} (J2000),
                 -46.7308d {-46d 43' 50.8"} (current),
                 -46.4196d {-46d 25' 10.5"} (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:  15886 TJD;   325 DOY;   11/11/21
IMG_START_TIME:  59462.00 SOD {16:31:02.00} UT,   277.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       236.79d {+15h 47m 10s}  -19.94d {-19d 56' 10"}
SUN_DIST:         70.19 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:      186.82d {+12h 27m 16s}   -8.06d {-08d 03' 36"}
MOON_DIST:        47.31 [deg]
MOON_ILLUM:      18 [%]
GAL_COORDS:      277.58,  8.56 [deg] galactic lon,lat of the burst
ECL_COORDS:      181.93,-51.61 [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%.