[vsnet-grb 168126] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 11 Feb 12 12:10:49 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     514586,   Seg_Num: 0
GRB_RA:           87.7537d {+05h 51m 00.88s} (J2000),
                  87.8778d {+05h 51m 30.67s} (current),
                  87.2416d {+05h 48m 57.98s} (1950)
GRB_DEC:         -24.7758d {-24d 46' 32.8"} (J2000),
                 -24.7732d {-24d 46' 23.6"} (current),
                 -24.7880d {-24d 47' 16.6"} (1950)
GRB_ERROR:       2.4 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  15968 TJD;    42 DOY;   12/02/11
IMG_START_TIME:  43247.00 SOD {12:00:47.00} UT,   138.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       324.53d {+21h 38m 07s}  -14.12d {-14d 07' 14"}
SUN_DIST:        112.45 [deg]   Sun_angle= -8.2 [hr] (East of Sun)
MOON_POSTN:      187.03d {+12h 28m 08s}   -7.94d {-07d 56' 22"}
MOON_DIST:        94.89 [deg]
MOON_ILLUM:      84 [%]
GAL_COORDS:      229.76,-23.68 [deg] galactic lon,lat of the burst
ECL_COORDS:       86.94,-48.19 [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%.