[vsnet-grb 350573] GCN/SWIFT_XRT_IMAGE_PROCESSED

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Fri 22 Dec 17 16:28:30 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     799669,   Seg_Num: 0
GRB_RA:          148.2770d {+09h 53m 06.4s} (J2000),
                 148.5448d {+09h 54m 10.7s} (current),
                 147.5300d {+09h 50m 07.2s} (1950)
GRB_DEC:         +35.6282d {+35d 37' 41.5"} (J2000),
                 +35.5430d {+35d 32' 34.6"} (current),
                 +35.8641d {+35d 51' 50.5"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       168 [cnts]
IMG_START_DATE:  18109 TJD;   356 DOY;   17/12/22
IMG_START_TIME:  59269.50 SOD {16:27:49.50} UT,   169.7 [sec] since BAT Trigger Time
CENTROID_X:      304.23,  raw= 304  [pixels]
CENTROID_Y:      232.30,  raw= 232  [pixels]
ROLL:            92.53 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -155.80
GRB_POS_XRT_Z:   -5.09
IMAGE_URL:       sw00799669000msxps_rw.img
SUN_POSTN:       271.11d {+18h 04m 26s}  -23.43d {-23d 25' 56"}
SUN_DIST:        129.27 [deg]   Sun_angle= 8.2 [hr] (West of Sun)
MOON_POSTN:      321.41d {+21h 25m 39s}  -15.47d {-15d 28' 22"}
MOON_DIST:       158.94 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      188.90, 51.34 [deg] galactic lon,lat of the burst
ECL_COORDS:      137.94, 21.37 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed 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 .