[vsnet-grb 377178] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 18 Aug 18 13:02:33 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     853882,   Seg_Num: 0
GRB_RA:          104.2253d {+06h 56m 54.07s} (J2000),
                 104.5462d {+06h 58m 11.09s} (current),
                 103.3631d {+06h 53m 27.14s} (1950)
GRB_DEC:         +39.3153d {+39d 18' 55.0"} (J2000),
                 +39.2895d {+39d 17' 22.3"} (current),
                 +39.3817d {+39d 22' 54.0"} (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:  18348 TJD;   230 DOY;   18/08/18
IMG_START_TIME:  45436.00 SOD {12:37:16.00} UT,   417.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       147.81d {+09h 51m 15s}  +13.00d {+13d 00' 12"}
SUN_DIST:         46.24 [deg]   Sun_angle= 2.9 [hr] (West of Sun)
MOON_POSTN:      237.18d {+15h 48m 42s}  -14.98d {-14d 58' 34"}
MOON_DIST:       132.07 [deg]
MOON_ILLUM:      52 [%]
GAL_COORDS:      177.25, 17.78 [deg] galactic lon,lat of the burst
ECL_COORDS:      101.43, 16.44 [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%.