[vsnet-grb 468657] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 21 Dec 20 07:23:47 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1013852,   Seg_Num: 0
GRB_RA:          214.4801d {+14h 17m 55.22s} (J2000),
                 214.8163d {+14h 19m 15.90s} (current),
                 213.6819d {+14h 14m 43.66s} (1950)
GRB_DEC:         -45.4166d {-45d 24' 59.7"} (J2000),
                 -45.5126d {-45d 30' 45.5"} (current),
                 -45.1860d {-45d 11' 09.6"} (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:  19204 TJD;   356 DOY;   20/12/21
IMG_START_TIME:  25887.00 SOD {07:11:27.00} UT,   145.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       269.88d {+17h 59m 32s}  -23.44d {-23d 26' 08"}
SUN_DIST:         49.31 [deg]   Sun_angle= 3.7 [hr] (West of Sun)
MOON_POSTN:      355.14d {+23h 40m 34s}   -7.88d {-07d 52' 34"}
MOON_DIST:       115.88 [deg]
MOON_ILLUM:      44 [%]
GAL_COORDS:      318.45, 14.83 [deg] galactic lon,lat of the burst
ECL_COORDS:      228.23,-29.70 [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%.