[vsnet-grb 461544] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 10 Oct 20 15:02:53 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     999571,   Seg_Num: 0
GRB_RA:          277.6705d {+18h 30m 40.92s} (J2000),
                 277.9503d {+18h 31m 48.06s} (current),
                 276.9972d {+18h 27m 59.32s} (1950)
GRB_DEC:          -6.7549d {-06d 45' 17.6"} (J2000),
                  -6.7392d {-06d 44' 21.0"} (current),
                  -6.7904d {-06d 47' 25.5"} (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:  19132 TJD;   284 DOY;   20/10/10
IMG_START_TIME:  53446.00 SOD {14:50:46.00} UT,   82.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       196.39d {+13h 05m 33s}   -6.97d {-06d 58' 18"}
SUN_DIST:         80.86 [deg]   Sun_angle= -5.4 [hr] (East of Sun)
MOON_POSTN:      117.29d {+07h 49m 10s}  +23.98d {+23d 58' 38"}
MOON_DIST:       154.67 [deg]
MOON_ILLUM:      44 [%]
GAL_COORDS:       24.55,  1.51 [deg] galactic lon,lat of the burst
ECL_COORDS:      277.95, 16.47 [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%.