[vsnet-grb 121919] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 20 Apr 10 05:45:40 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     419932,   Seg_Num: 0
GRB_RA:          296.1270d {+19h 44m 30.48s} (J2000),
                 296.1833d {+19h 44m 43.98s} (current),
                 295.8534d {+19h 43m 24.82s} (1950)
GRB_DEC:         +55.7695d {+55d 46' 10.2"} (J2000),
                 +55.7948d {+55d 47' 41.1"} (current),
                 +55.6475d {+55d 38' 50.9"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15306 TJD;   110 DOY;   10/04/20
IMG_START_TIME:  19510.00 SOD {05:25:10.00} UT,   147.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        27.96d {+01h 51m 50s}  +11.49d {+11d 29' 17"}
SUN_DIST:         81.51 [deg]   Sun_angle= 6.1 [hr] (West of Sun)
MOON_POSTN:      101.25d {+06h 45m 01s}  +23.43d {+23d 25' 35"}
MOON_DIST:        99.76 [deg]
MOON_ILLUM:      33 [%]
GAL_COORDS:       88.37, 15.19 [deg] galactic lon,lat of the burst
ECL_COORDS:      331.50, 73.63 [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%.