[vsnet-grb 377823] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 23 Aug 18 20:11:46 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     855434,   Seg_Num: 0
GRB_RA:          210.3562d {+14h 01m 25.48s} (J2000),
                 210.5811d {+14h 02m 19.46s} (current),
                 209.7531d {+13h 59m 00.73s} (1950)
GRB_DEC:         +14.8902d {+14d 53' 24.7"} (J2000),
                 +14.8007d {+14d 48' 02.6"} (current),
                 +15.1312d {+15d 07' 52.2"} (1950)
GRB_ERROR:       4.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18353 TJD;   235 DOY;   18/08/23
IMG_START_TIME:  69053.00 SOD {19:10:53.00} UT,   380.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       152.71d {+10h 10m 50s}  +11.24d {+11d 14' 32"}
SUN_DIST:         56.35 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      303.84d {+20h 15m 22s}  -19.34d {-19d 20' 30"}
MOON_DIST:        97.85 [deg]
MOON_ILLUM:      94 [%]
GAL_COORDS:      359.53, 69.63 [deg] galactic lon,lat of the burst
ECL_COORDS:      202.53, 25.47 [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 0.11% < P(seren) < 0.58%.