[vsnet-grb 272323] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 25 Sep 15 04:26:00 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     656604,   Seg_Num: 0
GRB_RA:          227.5339d {+15h 10m 08.13s} (J2000),
                 227.7586d {+15h 11m 02.05s} (current),
                 226.8209d {+15h 07m 17.02s} (1950)
GRB_DEC:         -19.6325d {-19d 37' 57.0"} (J2000),
                 -19.6915d {-19d 41' 29.4"} (current),
                 -19.4433d {-19d 26' 35.7"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17290 TJD;   268 DOY;   15/09/25
IMG_START_TIME:  15273.00 SOD {04:14:33.00} UT,   304.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       181.65d {+12h 06m 36s}   -0.71d {-00d 42' 52"}
SUN_DIST:         48.94 [deg]   Sun_angle= -3.1 [hr] (East of Sun)
MOON_POSTN:      321.87d {+21h 27m 28s}  -11.48d {-11d 28' 30"}
MOON_DIST:        89.95 [deg]
MOON_ILLUM:      88 [%]
GAL_COORDS:      342.34, 32.42 [deg] galactic lon,lat of the burst
ECL_COORDS:      230.49, -1.83 [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%.