[vsnet-grb 274901] GCN/SWIFT_XRT_IMAGE

[Bacodine]

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 27 Oct 15 04:00:42 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     661775,   Seg_Num: 0
GRB_RA:          272.4886d {+18h 09m 57.2s} (J2000),
                 272.5302d {+18h 10m 07.2s} (current),
                 272.3571d {+18h 09m 25.7s} (1950)
GRB_DEC:         +61.3515d {+61d 21' 05.4"} (J2000),
                 +61.3554d {+61d 21' 19.2"} (current),
                 +61.3397d {+61d 20' 23.0"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       178 [cnts]
IMG_START_DATE:  17322 TJD;   300 DOY;   15/10/27
IMG_START_TIME:  14391.15 SOD {03:59:51.15} UT,   87.0 [sec] since BAT Trigger Time
CENTROID_X:      316.34,  raw= 316  [pixels]
CENTROID_Y:      344.28,  raw= 344  [pixels]
ROLL:            238.91 [deg]
GAIN:            4
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   109.57
GRB_POS_XRT_Z:   26.03
IMAGE_URL:       sw00661775000msxps_rw.img
SUN_POSTN:       211.19d {+14h 04m 44s}  -12.65d {-12d 39' 05"}
SUN_DIST:         88.16 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:       27.46d {+01h 49m 51s}   +8.67d {+08d 40' 16"}
MOON_DIST:        93.87 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:       90.48, 28.49 [deg] galactic lon,lat of the burst
ECL_COORDS:      282.97, 84.68 [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 .