[vsnet-grb 169857] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Mar 12 19:50:34 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     516997,   Seg_Num: 0
GRB_RA:           47.5367d {+03h 10m 08.80s} (J2000),
                  47.7199d {+03h 10m 52.78s} (current),
                  46.7858d {+03h 07m 08.59s} (1950)
GRB_DEC:         +28.4914d {+28d 29' 29.0"} (J2000),
                 +28.5371d {+28d 32' 13.5"} (current),
                 +28.3021d {+28d 18' 07.5"} (1950)
GRB_ERROR:       2.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15991 TJD;    65 DOY;   12/03/05
IMG_START_TIME:  70812.00 SOD {19:40:12.00} UT,   162.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       346.78d {+23h 07m 08s}   -5.66d {-05d 39' 32"}
SUN_DIST:         67.82 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:      132.84d {+08h 51m 23s}  +13.04d {+13d 02' 18"}
MOON_DIST:        79.60 [deg]
MOON_ILLUM:      92 [%]
GAL_COORDS:      156.48,-25.20 [deg] galactic lon,lat of the burst
ECL_COORDS:       52.90, 10.36 [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%.