[vsnet-grb 123369] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 13 May 10 02:20:52 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     421814,   Seg_Num: 0
GRB_RA:          169.6118d {+11h 18m 26.83s} (J2000),
                 169.7452d {+11h 18m 58.85s} (current),
                 168.9679d {+11h 15m 52.29s} (1950)
GRB_DEC:          +3.6272d {+03d 37' 37.9"} (J2000),
                  +3.5704d {+03d 34' 13.6"} (current),
                  +3.9008d {+03d 54' 02.7"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15329 TJD;   133 DOY;   10/05/13
IMG_START_TIME:  7918.00 SOD {02:11:58.00} UT,   289.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        49.82d {+03h 19m 18s}  +18.33d {+18d 19' 36"}
SUN_DIST:        116.94 [deg]   Sun_angle= -8.0 [hr] (East of Sun)
MOON_POSTN:       36.72d {+02h 26m 52s}  +19.33d {+19d 20' 05"}
MOON_DIST:       128.46 [deg]
MOON_ILLUM:      1 [%]
GAL_COORDS:      255.50, 57.67 [deg] galactic lon,lat of the burst
ECL_COORDS:      169.03, -0.78 [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%.