[vsnet-grb 160921] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 22 Oct 11 17:31:04 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     506074,   Seg_Num: 0
GRB_RA:          108.9646d {+07h 15m 51.50s} (J2000),
                 109.1890d {+07h 16m 45.37s} (current),
                 108.0124d {+07h 12m 02.98s} (1950)
GRB_DEC:         +49.6835d {+49d 41' 00.6"} (J2000),
                 +49.6620d {+49d 39' 43.2"} (current),
                 +49.7718d {+49d 46' 18.4"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15856 TJD;   295 DOY;   11/10/22
IMG_START_TIME:  62271.00 SOD {17:17:51.00} UT,   286.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       206.92d {+13h 47m 41s}  -11.10d {-11d 06' 15"}
SUN_DIST:        103.43 [deg]   Sun_angle= 6.5 [hr] (West of Sun)
MOON_POSTN:      151.87d {+10h 07m 29s}   +6.18d {+06d 10' 45"}
MOON_DIST:        56.28 [deg]
MOON_ILLUM:      23 [%]
GAL_COORDS:      167.76, 24.14 [deg] galactic lon,lat of the burst
ECL_COORDS:      103.67, 27.14 [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%.