[vsnet-grb 204783] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 06 Jun 13 21:36:56 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     557589,   Seg_Num: 0
GRB_RA:          249.3990d {+16h 37m 35.76s} (J2000),
                 249.5310d {+16h 38m 07.44s} (current),
                 248.9077d {+16h 35m 37.85s} (1950)
GRB_DEC:         +29.7942d {+29d 47' 39.1"} (J2000),
                 +29.7680d {+29d 46' 04.6"} (current),
                 +29.8933d {+29d 53' 35.7"} (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:  16449 TJD;   157 DOY;   13/06/06
IMG_START_TIME:  76383.00 SOD {21:13:03.00} UT,   504.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        75.15d {+05h 00m 37s}  +22.74d {+22d 44' 07"}
SUN_DIST:        127.22 [deg]   Sun_angle= -11.6 [hr] (East of Sun)
MOON_POSTN:       54.85d {+03h 39m 25s}  +18.54d {+18d 32' 19"}
MOON_DIST:       129.66 [deg]
MOON_ILLUM:      3 [%]
GAL_COORDS:       50.13, 40.72 [deg] galactic lon,lat of the burst
ECL_COORDS:      240.86, 51.17 [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%.