[vsnet-grb 362024] GCN/SWIFT_XRT_IMAGE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 04 Apr 18 02:13:30 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     821902,   Seg_Num: 0
GRB_RA:           53.3967d {+03h 33m 35.2s} (J2000),
                  53.5326d {+03h 34m 07.8s} (current),
                  53.0247d {+03h 32m 05.9s} (1950)
GRB_DEC:         -50.2151d {-50d 12' 54.3"} (J2000),
                 -50.1546d {-50d 09' 16.5"} (current),
                 -50.3818d {-50d 22' 54.5"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       228 [cnts]
IMG_START_DATE:  18212 TJD;    94 DOY;   18/04/04
IMG_START_TIME:  7973.96 SOD {02:12:53.96} UT,   69.9 [sec] since BAT Trigger Time
CENTROID_X:      311.92,  raw= 312  [pixels]
CENTROID_Y:      313.11,  raw= 313  [pixels]
ROLL:            315.12 [deg]
GAIN:            8
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   34.68
GRB_POS_XRT_Z:   13.01
IMAGE_URL:       sw00821902000msxps_rw.img
SUN_POSTN:        13.14d {+00h 52m 33s}   +5.63d {+05d 37' 35"}
SUN_DIST:         65.77 [deg]   Sun_angle= -2.7 [hr] (East of Sun)
MOON_POSTN:      236.46d {+15h 45m 51s}  -14.86d {-14d 51' 31"}
MOON_DIST:       114.94 [deg]
MOON_ILLUM:      86 [%]
GAL_COORDS:      260.95,-51.56 [deg] galactic lon,lat of the burst
ECL_COORDS:       23.47,-65.42 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.  
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 .