[vsnet-grb 279652] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 29 Dec 15 07:07:09 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     668689,   Seg_Num: 0
GRB_RA:          329.3702d {+21h 57m 28.84s} (J2000),
                 329.5922d {+21h 58m 22.12s} (current),
                 328.6751d {+21h 54m 42.02s} (1950)
GRB_DEC:         -20.7325d {-20d 43' 57.0"} (J2000),
                 -20.6558d {-20d 39' 20.8"} (current),
                 -20.9712d {-20d 58' 16.3"} (1950)
GRB_ERROR:       2.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17385 TJD;   363 DOY;   15/12/29
IMG_START_TIME:  24784.00 SOD {06:53:04.00} UT,   156.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       277.87d {+18h 31m 29s}  -23.24d {-23d 14' 21"}
SUN_DIST:         47.79 [deg]   Sun_angle= -3.4 [hr] (East of Sun)
MOON_POSTN:      145.33d {+09h 41m 18s}  +11.15d {+11d 09' 10"}
MOON_DIST:       169.65 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:       32.43,-49.93 [deg] galactic lon,lat of the burst
ECL_COORDS:      324.31, -7.77 [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%.