[vsnet-grb 175191] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 May 12 01:35:56 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     522197,   Seg_Num: 0
GRB_RA:          283.0009d {+18h 52m 00.21s} (J2000),
                 283.1643d {+18h 52m 39.43s} (current),
                 282.3400d {+18h 49m 21.59s} (1950)
GRB_DEC:          -4.2626d {-04d 15' 45.3"} (J2000),
                  -4.2470d {-04d 14' 49.2"} (current),
                  -4.3237d {-04d 19' 25.1"} (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:  16061 TJD;   135 DOY;   12/05/14
IMG_START_TIME:  4589.00 SOD {01:16:29.00} UT,   219.1 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:        51.29d {+03h 25m 09s}  +18.69d {+18d 41' 19"}
SUN_DIST:        127.37 [deg]   Sun_angle= 8.5 [hr] (West of Sun)
MOON_POSTN:      337.04d {+22h 28m 10s}   -3.88d {-03d 52' 59"}
MOON_DIST:        53.73 [deg]
MOON_ILLUM:      38 [%]
GAL_COORDS:       29.20, -2.07 [deg] galactic lon,lat of the burst
ECL_COORDS:      283.69, 18.56 [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%.