[vsnet-grb 290208] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 01 May 16 01:32:38 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     684679,   Seg_Num: 0
GRB_RA:          286.3834d {+19h 05m 32.01s} (J2000),
                 286.6197d {+19h 06m 28.71s} (current),
                 285.6596d {+19h 02m 38.31s} (1950)
GRB_DEC:         -17.2407d {-17d 14' 26.5"} (J2000),
                 -17.2149d {-17d 12' 53.5"} (current),
                 -17.3175d {-17d 19' 03.1"} (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:  17509 TJD;   122 DOY;   16/05/01
IMG_START_TIME:  2728.00 SOD {00:45:28.00} UT,   296.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        38.69d {+02h 34m 46s}  +15.16d {+15d 09' 46"}
SUN_DIST:        115.08 [deg]   Sun_angle= 7.5 [hr] (West of Sun)
MOON_POSTN:      324.06d {+21h 36m 14s}  -11.85d {-11d 50' 59"}
MOON_DIST:        36.58 [deg]
MOON_ILLUM:      40 [%]
GAL_COORDS:       18.97,-10.80 [deg] galactic lon,lat of the burst
ECL_COORDS:      285.70,  5.31 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.