[vsnet-grb 339129] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 12 Sep 17 01:49:49 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     772006,   Seg_Num: 0
GRB_RA:          167.3730d {+11h 09m 29.51s} (J2000),
                 167.5699d {+11h 10m 16.78s} (current),
                 166.8187d {+11h 07m 16.47s} (1950)
GRB_DEC:         -54.3265d {-54d 19' 35.4"} (J2000),
                 -54.4227d {-54d 25' 21.6"} (current),
                 -54.0551d {-54d 03' 18.4"} (1950)
GRB_ERROR:       2.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18008 TJD;   255 DOY;   17/09/12
IMG_START_TIME:  5813.00 SOD {01:36:53.00} UT,   156.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       170.35d {+11h 21m 25s}   +4.15d {+04d 09' 16"}
SUN_DIST:         58.62 [deg]   Sun_angle= 0.2 [hr] (West of Sun)
MOON_POSTN:       62.73d {+04h 10m 55s}  +15.82d {+15d 48' 57"}
MOON_DIST:       111.41 [deg]
MOON_ILLUM:      64 [%]
GAL_COORDS:      288.33,  5.63 [deg] galactic lon,lat of the burst
ECL_COORDS:      199.92,-52.75 [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%.