[vsnet-grb 468241] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Dec 20 00:32:30 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1013243,   Seg_Num: 0
GRB_RA:           16.3711d {+01h 05m 29.06s} (J2000),
                  16.6495d {+01h 06m 35.88s} (current),
                  15.7080d {+01h 02m 49.91s} (1950)
GRB_DEC:         +16.5166d {+16d 30' 59.7"} (J2000),
                 +16.6285d {+16d 37' 42.5"} (current),
                 +16.2490d {+16d 14' 56.5"} (1950)
GRB_ERROR:       3.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19200 TJD;   352 DOY;   20/12/17
IMG_START_TIME:  174.00 SOD {00:02:54.00} UT,   3322.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       265.13d {+17h 40m 31s}  -23.36d {-23d 21' 36"}
SUN_DIST:        115.86 [deg]   Sun_angle= -7.4 [hr] (East of Sun)
MOON_POSTN:      299.28d {+19h 57m 06s}  -23.93d {-23d 55' 37"}
MOON_DIST:        85.68 [deg]
MOON_ILLUM:      7 [%]
GAL_COORDS:      127.80,-46.22 [deg] galactic lon,lat of the burst
ECL_COORDS:       21.43,  8.82 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.