[vsnet-grb 470267] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 04 Jan 21 21:23:48 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     1015919,   Seg_Num: 0
GRB_RA:           53.5538d {+03h 34m 12.91s} (J2000),
                  53.8966d {+03h 35m 35.18s} (current),
                  52.7402d {+03h 30m 57.64s} (1950)
GRB_DEC:         +37.9301d {+37d 55' 48.3"} (J2000),
                 +37.9993d {+37d 59' 57.5"} (current),
                 +37.7631d {+37d 45' 47.2"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  19218 TJD;     4 DOY;   21/01/04
IMG_START_TIME:  76311.00 SOD {21:11:51.00} UT,   100.2 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       286.01d {+19h 04m 03s}  -22.62d {-22d 37' 10"}
SUN_DIST:        133.12 [deg]   Sun_angle= -8.5 [hr] (East of Sun)
MOON_POSTN:      177.65d {+11h 50m 35s}   +6.73d {+06d 43' 38"}
MOON_DIST:       111.26 [deg]
MOON_ILLUM:      67 [%]
GAL_COORDS:      155.03,-14.59 [deg] galactic lon,lat of the burst
ECL_COORDS:       60.45, 18.16 [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%.