[vsnet-grb 334565] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 28 Jul 17 23:22:08 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     765130,   Seg_Num: 0
GRB_RA:          237.9810d {+15h 51m 55.43s} (J2000),
                 237.9771d {+15h 51m 54.49s} (current),
                 237.9960d {+15h 51m 59.04s} (1950)
GRB_DEC:         +70.1219d {+70d 07' 18.8"} (J2000),
                 +70.0700d {+70d 04' 12.0"} (current),
                 +70.2695d {+70d 16' 10.1"} (1950)
GRB_ERROR:       2.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17962 TJD;   209 DOY;   17/07/28
IMG_START_TIME:  83701.00 SOD {23:15:01.00} UT,   701.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       128.44d {+08h 33m 45s}  +18.76d {+18d 45' 19"}
SUN_DIST:         78.80 [deg]   Sun_angle= -7.3 [hr] (East of Sun)
MOON_POSTN:      197.44d {+13h 09m 46s}   -2.87d {-02d 52' 14"}
MOON_DIST:        77.78 [deg]
MOON_ILLUM:      34 [%]
GAL_COORDS:      104.61, 39.97 [deg] galactic lon,lat of the burst
ECL_COORDS:      148.71, 77.82 [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%.