[vsnet-grb 160903] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 22 Oct 11 16:55:02 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     506070,   Seg_Num: 0
GRB_RA:          275.8652d {+18h 23m 27.64s} (J2000),
                 276.0451d {+18h 24m 10.83s} (current),
                 275.1031d {+18h 20m 24.74s} (1950)
GRB_DEC:         -23.6733d {-23d 40' 23.8"} (J2000),
                 -23.6665d {-23d 39' 59.3"} (current),
                 -23.6999d {-23d 41' 59.6"} (1950)
GRB_ERROR:       3.7 [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:  58813.00 SOD {16:20:13.00} UT,   788.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       206.90d {+13h 47m 35s}  -11.10d {-11d 05' 44"}
SUN_DIST:         66.60 [deg]   Sun_angle= -4.6 [hr] (East of Sun)
MOON_POSTN:      151.54d {+10h 06m 10s}   +6.31d {+06d 18' 37"}
MOON_DIST:       124.04 [deg]
MOON_ILLUM:      23 [%]
GAL_COORDS:        8.75, -4.81 [deg] galactic lon,lat of the burst
ECL_COORDS:      275.37, -0.34 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 1.1% < P(seren) < 2.8%.