[vsnet-grb 355336] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 05 Feb 18 19:35:16 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     808755,   Seg_Num: 0
GRB_RA:          251.7917d {+16h 47m 10.00s} (J2000),
                 252.1224d {+16h 48m 29.37s} (current),
                 250.8797d {+16h 43m 31.12s} (1950)
GRB_DEC:         -45.8712d {-45d 52' 16.3"} (J2000),
                 -45.9024d {-45d 54' 08.6"} (current),
                 -45.7821d {-45d 46' 55.5"} (1950)
GRB_ERROR:       2.3 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18154 TJD;    36 DOY;   18/02/05
IMG_START_TIME:  70099.00 SOD {19:28:19.00} UT,   67.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       319.40d {+21h 17m 37s}  -15.75d {-15d 45' 10"}
SUN_DIST:         63.02 [deg]   Sun_angle= 4.5 [hr] (West of Sun)
MOON_POSTN:      205.49d {+13h 41m 59s}   -5.23d {-05d 13' 32"}
MOON_DIST:        57.23 [deg]
MOON_ILLUM:      68 [%]
GAL_COORDS:      339.55, -0.43 [deg] galactic lon,lat of the burst
ECL_COORDS:      256.30,-23.29 [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:        This is 1.8" from the X-ray source: [CMN2008] J164710.2-455216  
COMMENTS:        in the CHANDRA WD1CXO catalogue.