[vsnet-grb 441822] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 09 Apr 20 03:33:04 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     965484,   Seg_Num: 0
GRB_RA:           60.5365d {+04h 02m 08.75s} (J2000),
                  60.6782d {+04h 02m 42.77s} (current),
                  60.1874d {+04h 00m 44.97s} (1950)
GRB_DEC:         -50.2250d {-50d 13' 30.0"} (J2000),
                 -50.1696d {-50d 10' 10.6"} (current),
                 -50.3627d {-50d 21' 45.6"} (1950)
GRB_ERROR:       2.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18948 TJD;   100 DOY;   20/04/09
IMG_START_TIME:  12086.00 SOD {03:21:26.00} UT,   86.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        18.24d {+01h 12m 57s}   +7.72d {+07d 43' 29"}
SUN_DIST:         68.58 [deg]   Sun_angle= -2.8 [hr] (East of Sun)
MOON_POSTN:      213.85d {+14h 15m 24s}   -9.11d {-09d 06' 21"}
MOON_DIST:       116.29 [deg]
MOON_ILLUM:      98 [%]
GAL_COORDS:      258.80,-47.21 [deg] galactic lon,lat of the burst
ECL_COORDS:       33.13,-67.93 [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%.