[vsnet-grb 349478] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 11 Dec 17 09:54:14 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     796469,   Seg_Num: 0
GRB_RA:           98.1337d {+06h 32m 32.08s} (J2000),
                  98.2010d {+06h 32m 48.23s} (current),
                  97.9461d {+06h 31m 47.05s} (1950)
GRB_DEC:         -58.6919d {-58d 41' 30.8"} (J2000),
                 -58.7061d {-58d 42' 21.9"} (current),
                 -58.6530d {-58d 39' 10.6"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18098 TJD;   345 DOY;   17/12/11
IMG_START_TIME:  34175.00 SOD {09:29:35.00} UT,   122.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       258.63d {+17h 14m 32s}  -23.02d {-23d 01' 28"}
SUN_DIST:         96.67 [deg]   Sun_angle= 10.7 [hr] (West of Sun)
MOON_POSTN:      183.84d {+12h 15m 23s}   +2.29d {+02d 17' 21"}
MOON_DIST:        89.70 [deg]
MOON_ILLUM:      39 [%]
GAL_COORDS:      267.98,-25.32 [deg] galactic lon,lat of the burst
ECL_COORDS:      119.10,-81.30 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        There is a bright star (mag=5.70) 5.75 arcmin from the XRT position.  
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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.