[vsnet-grb 474149] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 11 Feb 21 09:00:01 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1032024,   Seg_Num: 0
GRB_RA:          269.4374d {+17h 57m 44.97s} (J2000),
                 269.8308d {+17h 59m 19.39s} (current),
                 268.5060d {+17h 54m 01.43s} (1950)
GRB_DEC:         -46.2659d {-46d 15' 57.2"} (J2000),
                 -46.2667d {-46d 15' 59.9"} (current),
                 -46.2609d {-46d 15' 39.2"} (1950)
GRB_ERROR:       3.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19256 TJD;    42 DOY;   21/02/11
IMG_START_TIME:  31482.00 SOD {08:44:42.00} UT,   83.7 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       325.20d {+21h 40m 49s}  -13.90d {-13d 53' 41"}
SUN_DIST:         56.30 [deg]   Sun_angle= 3.7 [hr] (West of Sun)
MOON_POSTN:      321.58d {+21h 26m 19s}  -19.73d {-19d 43' 53"}
MOON_DIST:        49.70 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      346.13,-10.76 [deg] galactic lon,lat of the burst
ECL_COORDS:      269.58,-22.83 [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%.