[vsnet-grb 315277] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 05 Feb 17 12:53:03 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     736843,   Seg_Num: 0
GRB_RA:          262.1696d {+17h 28m 40.70s} (J2000),
                 262.3888d {+17h 29m 33.30s} (current),
                 261.5289d {+17h 26m 06.92s} (1950)
GRB_DEC:          -0.0626d {-00d 03' 45.3"} (J2000),
                  -0.0754d {-00d 04' 31.3"} (current),
                  -0.0231d {-00d 01' 23.2"} (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:  17789 TJD;    36 DOY;   17/02/05
IMG_START_TIME:  45821.00 SOD {12:43:41.00} UT,   271.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       319.37d {+21h 17m 28s}  -15.76d {-15d 45' 51"}
SUN_DIST:         58.35 [deg]   Sun_angle= 3.8 [hr] (West of Sun)
MOON_POSTN:       63.97d {+04h 15m 54s}  +15.94d {+15d 56' 31"}
MOON_DIST:       155.88 [deg]
MOON_ILLUM:      66 [%]
GAL_COORDS:       23.10, 18.30 [deg] galactic lon,lat of the burst
ECL_COORDS:      261.48, 23.15 [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%.