[vsnet-grb 400783] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 20 Mar 19 02:38:17 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     893808,   Seg_Num: 0
GRB_RA:          117.8492d {+07h 51m 23.80s} (J2000),
                 117.9978d {+07h 51m 59.47s} (current),
                 117.4625d {+07h 49m 50.99s} (1950)
GRB_DEC:         -45.8880d {-45d 53' 16.7"} (J2000),
                 -45.9381d {-45d 56' 17.1"} (current),
                 -45.7588d {-45d 45' 31.5"} (1950)
GRB_ERROR:       3.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18562 TJD;    79 DOY;   19/03/20
IMG_START_TIME:  7321.00 SOD {02:02:01.00} UT,   2844.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       359.27d {+23h 57m 04s}   -0.32d {-00d 19' 03"}
SUN_DIST:        109.29 [deg]   Sun_angle= -7.9 [hr] (East of Sun)
MOON_POSTN:      168.64d {+11h 14m 33s}   +9.21d {+09d 12' 21"}
MOON_DIST:        71.31 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:      259.93, -9.62 [deg] galactic lon,lat of the burst
ECL_COORDS:      139.36,-64.63 [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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.