[vsnet-grb 160595] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 18 Oct 11 17:52:48 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     505801,   Seg_Num: 0
GRB_RA:          271.4888d {+18h 05m 57.31s} (J2000),
                 271.6444d {+18h 06m 34.65s} (current),
                 270.8293d {+18h 03m 19.02s} (1950)
GRB_DEC:          -3.9071d {-03d 54' 25.5"} (J2000),
                  -3.9053d {-03d 54' 19.0"} (current),
                  -3.9127d {-03d 54' 45.8"} (1950)
GRB_ERROR:       3.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15852 TJD;   291 DOY;   11/10/18
IMG_START_TIME:  62931.00 SOD {17:28:51.00} UT,   146.5 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       203.16d {+13h 32m 40s}   -9.68d {-09d 40' 38"}
SUN_DIST:         68.15 [deg]   Sun_angle= -4.6 [hr] (East of Sun)
MOON_POSTN:       99.01d {+06h 36m 03s}  +21.08d {+21d 04' 40"}
MOON_DIST:       161.39 [deg]
MOON_ILLUM:      64 [%]
GAL_COORDS:       24.19,  8.28 [deg] galactic lon,lat of the burst
ECL_COORDS:      271.58, 19.52 [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 0.58% < P(seren) < 1.1%.