[vsnet-grb 203930] GCN/SWIFT_XRT_POSITION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 27 May 13 14:23:54 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     556753,   Seg_Num: 0
GRB_RA:          309.2749d {+20h 37m 05.97s} (J2000),
                 309.4731d {+20h 37m 53.55s} (current),
                 308.5342d {+20h 34m 08.21s} (1950)
GRB_DEC:         -24.7244d {-24d 43' 27.8"} (J2000),
                 -24.6771d {-24d 40' 37.4"} (current),
                 -24.8992d {-24d 53' 57.2"} (1950)
GRB_ERROR:       5.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       2.88e-09 [erg/cm2/sec]
GRB_SIGNIF:      9.05 [sigma]
IMG_START_DATE:  16439 TJD;   147 DOY;   13/05/27
IMG_START_TIME:  51795.44 SOD {14:23:15.44} UT,   105.2 [sec] since BAT Trigger Time
TAM[0-3]:        327.67 237.22 261.55 243.72
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        64.60d {+04h 18m 24s}  +21.39d {+21d 23' 07"}
SUN_DIST:        120.76 [deg]   Sun_angle= 7.7 [hr] (West of Sun)
MOON_POSTN:      281.20d {+18h 44m 48s}  -18.87d {-18d 52' 29"}
MOON_DIST:        26.84 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       19.92,-33.39 [deg] galactic lon,lat of the burst
ECL_COORDS:      305.32, -5.97 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.28 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 .