[vsnet-grb 144965] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 19 Mar 11 02:28:00 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     449578,   Seg_Num: 0
GRB_RA:          356.5020d {+23h 46m 00.48s} (J2000),
                 356.6540d {+23h 46m 36.95s} (current),
                 355.8193d {+23h 43m 16.64s} (1950)
GRB_DEC:         -66.0110d {-66d 00' 39.5"} (J2000),
                 -65.9487d {-65d 56' 55.3"} (current),
                 -66.2888d {-66d 17' 19.6"} (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:  15639 TJD;    78 DOY;   11/03/19
IMG_START_TIME:  8313.00 SOD {02:18:33.00} UT,   111.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       358.29d {+23h 53m 10s}   -0.74d {-00d 44' 24"}
SUN_DIST:         65.22 [deg]   Sun_angle= 0.1 [hr] (West of Sun)
MOON_POSTN:      167.93d {+11h 11m 44s}   -0.14d {-00d 08' 35"}
MOON_DIST:       113.61 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      313.15,-49.80 [deg] galactic lon,lat of the burst
ECL_COORDS:      316.42,-55.93 [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%.