[vsnet-grb 410065] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 13 Jun 19 11:23:34 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     908329,   Seg_Num: 0
GRB_RA:          305.4320d {+20h 21m 43.68s} (J2000),
                 305.6883d {+20h 22m 45.18s} (current),
                 304.7726d {+20h 19m 05.43s} (1950)
GRB_DEC:          -4.6474d {-04d 38' 50.6"} (J2000),
                  -4.5844d {-04d 35' 03.9"} (current),
                  -4.8075d {-04d 48' 26.9"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18647 TJD;   164 DOY;   19/06/13
IMG_START_TIME:  39279.00 SOD {10:54:39.00} UT,   456.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        81.49d {+05h 25m 58s}  +23.21d {+23d 12' 20"}
SUN_DIST:        133.50 [deg]   Sun_angle= 9.1 [hr] (West of Sun)
MOON_POSTN:      213.61d {+14h 14m 26s}   -8.18d {-08d 10' 37"}
MOON_DIST:        91.40 [deg]
MOON_ILLUM:      83 [%]
GAL_COORDS:       39.28,-22.18 [deg] galactic lon,lat of the burst
ECL_COORDS:      306.63, 14.40 [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%.