[vsnet-grb 210406] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 16 Aug 13 02:03:34 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     566545,   Seg_Num: 0
GRB_RA:          197.1399d {+13h 08m 33.57s} (J2000),
                 197.3518d {+13h 09m 24.44s} (current),
                 196.3668d {+13h 05m 28.03s} (1950)
GRB_DEC:         -58.9450d {-58d 56' 42.0"} (J2000),
                 -59.0174d {-59d 01' 02.7"} (current),
                 -58.6784d {-58d 40' 42.2"} (1950)
GRB_ERROR:       2.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16520 TJD;   228 DOY;   13/08/16
IMG_START_TIME:  6527.00 SOD {01:48:47.00} UT,   111.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       145.72d {+09h 42m 52s}  +13.72d {+13d 43' 23"}
SUN_DIST:         83.86 [deg]   Sun_angle= -3.4 [hr] (East of Sun)
MOON_POSTN:      253.84d {+16h 55m 21s}  -19.68d {-19d 40' 35"}
MOON_DIST:        56.20 [deg]
MOON_ILLUM:      68 [%]
GAL_COORDS:      305.14,  3.85 [deg] galactic lon,lat of the burst
ECL_COORDS:      224.25,-46.51 [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%.