[vsnet-grb 171481] GCN/SWIFT_XRT_POSITION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 27 Mar 12 03:07:00 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     518731,   Seg_Num: 0
GRB_RA:          246.8644d {+16h 27m 27.45s} (J2000),
                 247.0565d {+16h 28m 13.56s} (current),
                 246.0803d {+16h 24m 19.26s} (1950)
GRB_DEC:         -29.4156d {-29d 24' 56.1"} (J2000),
                 -29.4423d {-29d 26' 32.1"} (current),
                 -29.3045d {-29d 18' 16.0"} (1950)
GRB_ERROR:       4.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       5.41e-09 [erg/cm2/sec]
GRB_SIGNIF:      12.56 [sigma]
IMG_START_DATE:  16013 TJD;    87 DOY;   12/03/27
IMG_START_TIME:  10592.21 SOD {02:56:32.21} UT,   75.6 [sec] since BAT Trigger Time
TAM[0-3]:        327.69 237.22 261.53 243.75
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:         6.29d {+00h 25m 11s}   +2.72d {+02d 43' 15"}
SUN_DIST:        116.63 [deg]   Sun_angle= 7.9 [hr] (West of Sun)
MOON_POSTN:       53.66d {+03h 34m 38s}  +20.15d {+20d 09' 03"}
MOON_DIST:       164.72 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      349.36, 13.40 [deg] galactic lon,lat of the burst
ECL_COORDS:      249.80, -7.58 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.88 arcmin from the BAT position.  
COMMENTS:        The object found at this position is either a very bright burst or a cosmic ray hit.  
COMMENTS:        Examine the XRT Image to differentiate (CRs are much more compact); see examples at:  
COMMENTS:        http://www.swift.psu.edu/xrt/XRT_Postage_Stamp_Image_Photo_Gallery.htm .