[vsnet-grb 370217] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 18 Jun 18 01:26:45 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     842475,   Seg_Num: 0
GRB_RA:          169.9397d {+11h 19m 45.52s} (J2000),
                 170.2371d {+11h 20m 56.89s} (current),
                 169.1231d {+11h 16m 29.55s} (1950)
GRB_DEC:         +73.8365d {+73d 50' 11.4"} (J2000),
                 +73.7353d {+73d 44' 06.9"} (current),
                 +74.1103d {+74d 06' 36.9"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18287 TJD;   169 DOY;   18/06/18
IMG_START_TIME:  2988.00 SOD {00:49:48.00} UT,   395.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        86.51d {+05h 46m 02s}  +23.40d {+23d 23' 51"}
SUN_DIST:         65.84 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:      148.51d {+09h 54m 03s}  +14.42d {+14d 25' 25"}
MOON_DIST:        60.59 [deg]
MOON_ILLUM:      24 [%]
GAL_COORDS:      131.29, 41.77 [deg] galactic lon,lat of the burst
ECL_COORDS:      122.72, 59.53 [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%.