[vsnet-grb 287291] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 27 Mar 16 09:28:18 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     680655,   Seg_Num: 0
GRB_RA:          146.7018d {+09h 46m 48.43s} (J2000),
                 146.9778d {+09h 47m 54.67s} (current),
                 145.8475d {+09h 43m 23.40s} (1950)
GRB_DEC:         +54.0131d {+54d 00' 47.1"} (J2000),
                 +53.9374d {+53d 56' 14.7"} (current),
                 +54.2447d {+54d 14' 40.7"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17474 TJD;    87 DOY;   16/03/27
IMG_START_TIME:  33503.00 SOD {09:18:23.00} UT,   135.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:         6.56d {+00h 26m 15s}   +2.84d {+02d 50' 11"}
SUN_DIST:        114.40 [deg]   Sun_angle= -9.4 [hr] (East of Sun)
MOON_POSTN:      228.11d {+15h 12m 27s}  -13.23d {-13d 13' 40"}
MOON_DIST:        95.55 [deg]
MOON_ILLUM:      87 [%]
GAL_COORDS:      161.34, 46.99 [deg] galactic lon,lat of the burst
ECL_COORDS:      128.48, 37.88 [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 0.11% < P(seren) < 0.58%.