[vsnet-grb 188279] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 27 Oct 12 07:50:50 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     536831,   Seg_Num: 0
GRB_RA:           63.5977d {+04h 14m 23.44s} (J2000),
                  63.6563d {+04h 14m 37.51s} (current),
                  63.3700d {+04h 13m 28.80s} (1950)
GRB_DEC:         -58.8297d {-58d 49' 46.9"} (J2000),
                 -58.7980d {-58d 47' 52.7"} (current),
                 -58.9540d {-58d 57' 14.3"} (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:  16227 TJD;   301 DOY;   12/10/27
IMG_START_TIME:  27664.00 SOD {07:41:04.00} UT,   514.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       212.04d {+14h 08m 09s}  -12.95d {-12d 57' 05"}
SUN_DIST:        103.78 [deg]   Sun_angle= 9.9 [hr] (West of Sun)
MOON_POSTN:        4.26d {+00h 17m 03s}   +6.22d {+06d 12' 55"}
MOON_DIST:        80.23 [deg]
MOON_ILLUM:      94 [%]
GAL_COORDS:      269.72,-42.97 [deg] galactic lon,lat of the burst
ECL_COORDS:       20.27,-75.80 [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 0.11% < P(seren) < 0.58%.