[vsnet-grb 344831] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 27 Oct 17 08:42:28 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     783479,   Seg_Num: 0
GRB_RA:           61.6908d {+04h 06m 45.79s} (J2000),
                  61.9152d {+04h 07m 39.63s} (current),
                  61.0618d {+04h 04m 14.82s} (1950)
GRB_DEC:          -2.6223d {-02d 37' 20.2"} (J2000),
                  -2.5754d {-02d 34' 31.5"} (current),
                  -2.7557d {-02d 45' 20.4"} (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:  18053 TJD;   300 DOY;   17/10/27
IMG_START_TIME:  30489.00 SOD {08:28:09.00} UT,   302.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       211.87d {+14h 07m 29s}  -12.89d {-12d 53' 30"}
SUN_DIST:        146.40 [deg]   Sun_angle= 10.0 [hr] (West of Sun)
MOON_POSTN:      299.60d {+19h 58m 25s}  -18.65d {-18d 39' 11"}
MOON_DIST:       119.44 [deg]
MOON_ILLUM:      45 [%]
GAL_COORDS:      193.92,-37.31 [deg] galactic lon,lat of the burst
ECL_COORDS:       59.01,-23.07 [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%.