[vsnet-grb 197112] GCN/SWIFT_XRT_POSITION

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 26 Feb 13 23:20:43 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     549824,   Seg_Num: 0
GRB_RA:          274.0038d {+18h 16m 00.91s} (J2000),
                 274.1906d {+18h 16m 45.75s} (current),
                 273.2938d {+18h 13m 10.50s} (1950)
GRB_DEC:         -14.0351d {-14d 02' 06.3"} (J2000),
                 -14.0299d {-14d 01' 47.5"} (current),
                 -14.0528d {-14d 03' 10.1"} (1950)
GRB_ERROR:       4.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.36e-08 [erg/cm2/sec]
GRB_SIGNIF:      15.65 [sigma]
IMG_START_DATE:  16349 TJD;    57 DOY;   13/02/26
IMG_START_TIME:  84009.63 SOD {23:20:09.63} UT,   3787.9 [sec] since BAT Trigger Time
TAM[0-3]:        327.66 237.21 261.62 243.65
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       340.15d {+22h 40m 37s}   -8.37d {-08d 22' 19"}
SUN_DIST:         64.77 [deg]   Sun_angle= 4.4 [hr] (West of Sun)
MOON_POSTN:      171.25d {+11h 24m 59s}   -0.88d {-00d 52' 47"}
MOON_DIST:       102.33 [deg]
MOON_ILLUM:      99 [%]
GAL_COORDS:       16.43,  1.28 [deg] galactic lon,lat of the burst
ECL_COORDS:      273.94,  9.35 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This matches a source in the BAT ground catalog: GX_17+2,   delta=0.004 [deg].  
COMMENTS:        The XRT position is 1.37 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 .