[vsnet-grb 198373] GCN/SWIFT_XRT_POSITION_UPDATE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 15 Mar 13 13:10:24 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     551126,   Seg_Num: 0
GRB_RA:          157.5456d {+10h 30m 10.94s} (J2000),
                 157.6791d {+10h 30m 42.99s} (current),
                 157.0410d {+10h 28m 09.83s} (1950)
GRB_DEC:         -51.7939d {-51d 47' 38.0"} (J2000),
                 -51.8619d {-51d 51' 42.6"} (current),
                 -51.5371d {-51d 32' 13.4"} (1950)
GRB_ERROR:       4.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  16366 TJD;    74 DOY;   13/03/15
IMG_START_TIME:  46401.00 SOD {12:53:21.00} UT,   468.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       355.51d {+23h 42m 04s}   -1.94d {-01d 56' 28"}
SUN_DIST:        124.12 [deg]   Sun_angle= -10.8 [hr] (East of Sun)
MOON_POSTN:       36.72d {+02h 26m 52s}  +15.27d {+15d 16' 13"}
MOON_DIST:       120.91 [deg]
MOON_ILLUM:      14 [%]
GAL_COORDS:      281.89,  5.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      189.52,-54.58 [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 0.11% < P(seren) < 0.58%.