[vsnet-grb 494761] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 07 Aug 21 23:40:14 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1064421,   Seg_Num: 0
GRB_RA:          143.5344d {+09h 34m 08.25s} (J2000),
                 143.7217d {+09h 34m 53.20s} (current),
                 143.1014d {+09h 32m 24.33s} (1950)
GRB_DEC:         -51.4024d {-51d 24' 08.6"} (J2000),
                 -51.4992d {-51d 29' 57.2"} (current),
                 -51.1791d {-51d 10' 44.8"} (1950)
GRB_ERROR:       7.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19433 TJD;   219 DOY;   21/08/07
IMG_START_TIME:  83017.00 SOD {23:03:37.00} UT,   388.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       138.14d {+09h 12m 33s}  +16.13d {+16d 08' 05"}
SUN_DIST:         67.81 [deg]   Sun_angle= -0.4 [hr] (East of Sun)
MOON_POSTN:      132.33d {+08h 49m 20s}  +22.25d {+22d 14' 51"}
MOON_DIST:        74.42 [deg]
MOON_ILLUM:      0 [%]
GAL_COORDS:      274.69,  0.32 [deg] galactic lon,lat of the burst
ECL_COORDS:      176.66,-59.83 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        There is a bright star (mag=5.01) 8.83 arcmin from the XRT position.  
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%.