[vsnet-grb 388857] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 03 Dec 18 12:22:33 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     874475,   Seg_Num: 0
GRB_RA:          108.3491d {+07h 13m 23.78s} (J2000),
                 108.5082d {+07h 14m 01.97s} (current),
                 107.9287d {+07h 11m 42.88s} (1950)
GRB_DEC:         -39.8016d {-39d 48' 05.7"} (J2000),
                 -39.8349d {-39d 50' 05.6"} (current),
                 -39.7149d {-39d 42' 53.7"} (1950)
GRB_ERROR:       2.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18455 TJD;   337 DOY;   18/12/03
IMG_START_TIME:  43862.00 SOD {12:11:02.00} UT,   134.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       249.73d {+16h 38m 56s}  -22.13d {-22d 07' 43"}
SUN_DIST:        108.26 [deg]   Sun_angle= 9.4 [hr] (West of Sun)
MOON_POSTN:      205.78d {+13h 43m 06s}   -5.14d {-05d 08' 35"}
MOON_DIST:        92.25 [deg]
MOON_ILLUM:      15 [%]
GAL_COORDS:      251.20,-13.09 [deg] galactic lon,lat of the burst
ECL_COORDS:      120.27,-61.33 [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%.