[vsnet-grb 255451] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 09 Mar 15 23:33:33 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     634200,   Seg_Num: 0
GRB_RA:          277.0921d {+18h 28m 22.10s} (J2000),
                 275.9387d {+18h 23m 45.28s} (current),
                 280.8320d {+18h 43m 19.67s} (1950)
GRB_DEC:         +86.4296d {+86d 25' 46.5"} (J2000),
                 +86.4392d {+86d 26' 21.1"} (current),
                 +86.3861d {+86d 23' 10.0"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17090 TJD;    68 DOY;   15/03/09
IMG_START_TIME:  83399.00 SOD {23:09:59.00} UT,   412.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       349.96d {+23h 19m 49s}   -4.32d {-04d 19' 23"}
SUN_DIST:         93.34 [deg]   Sun_angle= 4.9 [hr] (West of Sun)
MOON_POSTN:      213.64d {+14h 14m 32s}  -11.08d {-11d 05' 01"}
MOON_DIST:        99.41 [deg]
MOON_ILLUM:      85 [%]
GAL_COORDS:      118.93, 27.43 [deg] galactic lon,lat of the burst
ECL_COORDS:       88.71, 70.10 [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 0.11% < P(seren) < 0.58%.