[vsnet-grb 184416] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 07 Sep 12 00:31:58 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     532871,   Seg_Num: 0
GRB_RA:           74.7492d {+04h 59m 00.19s} (J2000),
                  74.9005d {+04h 59m 36.12s} (current),
                  74.1528d {+04h 56m 36.68s} (1950)
GRB_DEC:          -9.3141d {-09d 18' 50.7"} (J2000),
                  -9.2956d {-09d 17' 44.2"} (current),
                  -9.3887d {-09d 23' 19.4"} (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:  16177 TJD;   251 DOY;   12/09/07
IMG_START_TIME:  1566.00 SOD {00:26:06.00} UT,   102.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       166.00d {+11h 04m 00s}   +5.99d {+05d 59' 12"}
SUN_DIST:         92.04 [deg]   Sun_angle= 6.1 [hr] (West of Sun)
MOON_POSTN:       55.98d {+03h 43m 55s}  +19.79d {+19d 47' 12"}
MOON_DIST:        34.54 [deg]
MOON_ILLUM:      64 [%]
GAL_COORDS:      208.47,-29.18 [deg] galactic lon,lat of the burst
ECL_COORDS:       72.21,-31.82 [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%.