[vsnet-grb 191747] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 12 Dec 12 07:09:15 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     541371,   Seg_Num: 0
GRB_RA:          177.7906d {+11h 51m 09.74s} (J2000),
                 177.9690d {+11h 51m 52.56s} (current),
                 177.0908d {+11h 48m 21.79s} (1950)
GRB_DEC:         +78.0373d {+78d 02' 14.2"} (J2000),
                 +77.9653d {+77d 57' 54.9"} (current),
                 +78.3154d {+78d 18' 55.5"} (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:  16273 TJD;   347 DOY;   12/12/12
IMG_START_TIME:  25061.00 SOD {06:57:41.00} UT,   87.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       259.84d {+17h 19m 22s}  -23.11d {-23d 06' 30"}
SUN_DIST:        110.90 [deg]   Sun_angle= 5.5 [hr] (West of Sun)
MOON_POSTN:      243.86d {+16h 15m 27s}  -20.31d {-20d 18' 39"}
MOON_DIST:       105.05 [deg]
MOON_ILLUM:      2 [%]
GAL_COORDS:      126.89, 38.62 [deg] galactic lon,lat of the burst
ECL_COORDS:      117.58, 63.43 [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 0.58% < P(seren) < 1.1%.