[vsnet-grb 437327] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 27 Feb 20 07:56:51 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     958592,   Seg_Num: 0
GRB_RA:           56.4331d {+03h 45m 43.94s} (J2000),
                  56.7070d {+03h 46m 49.69s} (current),
                  55.7543d {+03h 43m 01.03s} (1950)
GRB_DEC:          +9.4823d {+09d 28' 56.2"} (J2000),
                  +9.5441d {+09d 32' 38.8"} (current),
                  +9.3270d {+09d 19' 37.1"} (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:  18906 TJD;    58 DOY;   20/02/27
IMG_START_TIME:  26582.00 SOD {07:23:02.00} UT,   174.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       339.83d {+22h 39m 20s}   -8.50d {-08d 29' 56"}
SUN_DIST:         78.64 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       18.81d {+01h 15m 13s}   +2.63d {+02d 37' 38"}
MOON_DIST:        38.29 [deg]
MOON_ILLUM:      12 [%]
GAL_COORDS:      178.14,-34.11 [deg] galactic lon,lat of the burst
ECL_COORDS:       56.36,-10.12 [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%.