[vsnet-grb 215401] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 18 Oct 13 12:58:12 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     574935,   Seg_Num: 0
GRB_RA:           98.4709d {+06h 33m 53.01s} (J2000),
                  98.6202d {+06h 34m 28.84s} (current),
                  97.9300d {+06h 31m 43.20s} (1950)
GRB_DEC:         -19.8977d {-19d 53' 51.7"} (J2000),
                 -19.9091d {-19d 54' 32.8"} (current),
                 -19.8580d {-19d 51' 28.7"} (1950)
GRB_ERROR:       3.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16583 TJD;   291 DOY;   13/10/18
IMG_START_TIME:  46348.00 SOD {12:52:28.00} UT,   279.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       203.46d {+13h 33m 50s}   -9.79d {-09d 47' 23"}
SUN_DIST:        100.33 [deg]   Sun_angle= 7.0 [hr] (West of Sun)
MOON_POSTN:       17.73d {+01h 10m 55s}   +9.18d {+09d 10' 43"}
MOON_DIST:        84.69 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      229.00,-12.66 [deg] galactic lon,lat of the burst
ECL_COORDS:      100.92,-43.02 [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 0.11% < P(seren) < 0.58%.