[vsnet-grb 320270] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 05 Apr 17 18:57:23 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     745797,   Seg_Num: 0
GRB_RA:          219.8281d {+14h 39m 18.74s} (J2000),
                 220.0784d {+14h 40m 18.81s} (current),
                 219.1045d {+14h 36m 25.09s} (1950)
GRB_DEC:         -25.2437d {-25d 14' 37.3"} (J2000),
                 -25.3174d {-25d 19' 02.5"} (current),
                 -25.0288d {-25d 01' 43.5"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17848 TJD;    95 DOY;   17/04/05
IMG_START_TIME:  67821.00 SOD {18:50:21.00} UT,   632.6 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        14.91d {+00h 59m 38s}   +6.36d {+06d 21' 49"}
SUN_DIST:        149.37 [deg]   Sun_angle= 10.3 [hr] (West of Sun)
MOON_POSTN:      133.51d {+08h 54m 03s}  +15.49d {+15d 29' 31"}
MOON_DIST:        93.56 [deg]
MOON_ILLUM:      71 [%]
GAL_COORDS:      331.70, 31.53 [deg] galactic lon,lat of the burst
ECL_COORDS:      225.27, -9.26 [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%.