[vsnet-grb 444847] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 06 May 20 17:53:39 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     969823,   Seg_Num: 0
GRB_RA:          274.5008d {+18h 18m 00.19s} (J2000),
                 274.7941d {+18h 19m 10.59s} (current),
                 273.7799d {+18h 15m 07.17s} (1950)
GRB_DEC:         -16.1311d {-16d 07' 51.9"} (J2000),
                 -16.1219d {-16d 07' 18.9"} (current),
                 -16.1512d {-16d 09' 04.3"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18975 TJD;   127 DOY;   20/05/06
IMG_START_TIME:  63480.00 SOD {17:38:00.00} UT,   70.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        44.19d {+02h 56m 46s}  +16.81d {+16d 48' 48"}
SUN_DIST:        131.60 [deg]   Sun_angle= 8.6 [hr] (West of Sun)
MOON_POSTN:      215.93d {+14h 23m 43s}  -10.02d {-10d 00' 53"}
MOON_DIST:        57.49 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:       14.82, -0.14 [deg] galactic lon,lat of the burst
ECL_COORDS:      274.36,  7.24 [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 1.1% < P(seren) < 2.8%.