[vsnet-grb 360778] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 24 Mar 18 04:52:53 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     817345,   Seg_Num: 0
GRB_RA:           76.5276d {+05h 06m 06.62s} (J2000),
                  76.9116d {+05h 07m 38.78s} (current),
                  75.4762d {+05h 01m 54.27s} (1950)
GRB_DEC:         +56.7135d {+56d 42' 48.6"} (J2000),
                 +56.7368d {+56d 44' 12.5"} (current),
                 +56.6462d {+56d 38' 46.1"} (1950)
GRB_ERROR:       2.2 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18201 TJD;    83 DOY;   18/03/24
IMG_START_TIME:  16725.00 SOD {04:38:45.00} UT,   95.4 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:         3.22d {+00h 12m 52s}   +1.39d {+01d 23' 37"}
SUN_DIST:         79.96 [deg]   Sun_angle= -4.9 [hr] (East of Sun)
MOON_POSTN:       87.49d {+05h 49m 57s}  +19.72d {+19d 43' 01"}
MOON_DIST:        37.85 [deg]
MOON_ILLUM:      45 [%]
GAL_COORDS:      152.84,  9.47 [deg] galactic lon,lat of the burst
ECL_COORDS:       81.16, 33.69 [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%.