[vsnet-grb 283875] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 16 Feb 16 19:28:54 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     673978,   Seg_Num: 0
GRB_RA:          311.6858d {+20h 46m 44.59s} (J2000),
                 312.0924d {+20h 48m 22.17s} (current),
                 310.4127d {+20h 41m 39.05s} (1950)
GRB_DEC:         -71.5479d {-71d 32' 52.4"} (J2000),
                 -71.4880d {-71d 29' 16.6"} (current),
                 -71.7307d {-71d 43' 50.6"} (1950)
GRB_ERROR:       3.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17434 TJD;    47 DOY;   16/02/16
IMG_START_TIME:  69169.00 SOD {19:12:49.00} UT,   137.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       329.75d {+21h 59m 00s}  -12.32d {-12d 19' 10"}
SUN_DIST:         60.14 [deg]   Sun_angle= 1.2 [hr] (West of Sun)
MOON_POSTN:       75.90d {+05h 03m 35s}  +17.54d {+17d 32' 35"}
MOON_DIST:       117.02 [deg]
MOON_ILLUM:      66 [%]
GAL_COORDS:      322.63,-34.64 [deg] galactic lon,lat of the burst
ECL_COORDS:      289.51,-50.92 [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%.