[vsnet-grb 469657] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 29 Dec 20 11:15:22 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1015088,   Seg_Num: 0
GRB_RA:          210.6890d {+14h 02m 45.35s} (J2000),
                 210.8912d {+14h 03m 33.88s} (current),
                 210.2069d {+14h 00m 49.66s} (1950)
GRB_DEC:         +48.1976d {+48d 11' 51.3"} (J2000),
                 +48.0972d {+48d 05' 49.9"} (current),
                 +48.4376d {+48d 26' 15.3"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19212 TJD;   364 DOY;   20/12/29
IMG_START_TIME:  39709.00 SOD {11:01:49.00} UT,   138.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       278.93d {+18h 35m 44s}  -23.18d {-23d 10' 54"}
SUN_DIST:         93.63 [deg]   Sun_angle= 4.5 [hr] (West of Sun)
MOON_POSTN:       90.51d {+06h 02m 02s}  +24.30d {+24d 17' 45"}
MOON_DIST:        90.09 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       94.32, 64.78 [deg] galactic lon,lat of the burst
ECL_COORDS:      181.56, 55.01 [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%.