Gamma-ray Burst 161117A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

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Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:35:51 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.070d {+21h 28m 17s} (J2000),
                 322.319d {+21h 29m 17s} (current),
                 321.331d {+21h 25m 19s} (1950)
GRB_DEC:         -29.629d {-29d 37' 43"} (J2000),
                 -29.555d {-29d 33' 16"} (current),
                 -29.847d {-29d 50' 50"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6267 [cnts]    Image_Peak=730 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       20837 [cnts]
BKG_TIME:        5718.82 SOD {01:35:18.82} UT
BKG_DUR:         8 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5736.68 SOD {01:35:36.68} UT
GRB_PHI:         -172.97 [deg]
GRB_THETA:        12.37 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     65.52 [sigma]
IMAGE_SIGNIF:    19.39 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +6  +0  +0 -16  +0 
SUN_POSTN:       232.79d {+15h 31m 09s}  -19.05d {-19d 02' 49"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.13d {+06h 00m 31s}  +18.74d {+18d 44' 32"}
MOON_DIST:       131.57 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.22,-45.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      314.95,-13.95 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 225.92,16.13 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(5.0<100sec) coincident with the FERMI_GBM event (trignum=501039335).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:35:55 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      47
TRIGGER_NUM:     501039335
GRB_RA:          317.117d {+21h 08m 28s} (J2000),
                 317.357d {+21h 09m 26s} (current),
                 316.403d {+21h 05m 37s} (1950)
GRB_DEC:         -20.800d {-20d 48' 00"} (J2000),
                 -20.731d {-20d 43' 51"} (current),
                 -21.003d {-21d 00' 09"} (1950)
GRB_ERROR:       10.22 [deg radius, statistical plus systematic]
GRB_INTEN:       254 [cnts/sec]
DATA_SIGNIF:     15.90 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          71.00 [deg]
GRB_THETA:        85.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.30
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      96%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,0,1, 0,0,0, 0,0,0, 0,1,0, 0,0,
SUN_POSTN:       232.79d {+15h 31m 09s}  -19.05d {-19d 02' 49"}
SUN_DIST:         78.51 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:       90.13d {+06h 00m 31s}  +18.74d {+18d 44' 32"}
MOON_DIST:       135.66 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       27.31,-39.07 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      313.38, -4.17 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 312.22,11.65 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:36:05 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      59
TRIGGER_NUM:     501039335
GRB_RA:          317.050d {+21h 08m 12s} (J2000),
                 317.290d {+21h 09m 10s} (current),
                 316.338d {+21h 05m 21s} (1950)
GRB_DEC:         -20.500d {-20d 30' 00"} (J2000),
                 -20.431d {-20d 25' 51"} (current),
                 -20.703d {-20d 42' 08"} (1950)
GRB_ERROR:       6.78 [deg radius, statistical plus systematic]
GRB_INTEN:       347 [cnts/sec]
DATA_SIGNIF:     25.90 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          71.00 [deg]
GRB_THETA:        85.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      0.37
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      95%  GRB
2nd_MOST_LIKELY:   3%  Generic Transient
DETECTORS:       0,0,1, 0,0,0, 0,0,0, 0,1,0, 0,0,
SUN_POSTN:       232.79d {+15h 31m 09s}  -19.05d {-19d 02' 49"}
SUN_DIST:         78.53 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:       90.13d {+06h 00m 31s}  +18.74d {+18d 44' 32"}
MOON_DIST:       135.69 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       27.65,-38.91 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      313.41, -3.87 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 312.22,11.65 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:36:09 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      58
TRIGGER_NUM:     501039335
GRB_RA:          316.800d {+21h 07m 12s} (J2000),
                 317.045d {+21h 08m 11s} (current),
                 316.074d {+21h 04m 18s} (1950)
GRB_DEC:         -23.850d {-23d 51' 00"} (J2000),
                 -23.781d {-23d 46' 52"} (current),
                 -24.052d {-24d 03' 05"} (1950)
GRB_ERROR:       3.62 [deg radius, statistical only]
DATA_SIGNIF:     28.10 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          72.00 [deg]
GRB_THETA:        88.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4153 (Gnd S/W Version number)
SUN_POSTN:       232.79d {+15h 31m 09s}  -19.05d {-19d 02' 49"}
SUN_DIST:         77.40 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:       90.13d {+06h 00m 32s}  +18.74d {+18d 44' 32"}
MOON_DIST:       136.18 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       23.43,-39.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      312.20, -7.00 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_501039335.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:36:43 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      0
TRIGGER_NUM:     501039335
GRB_RA:          316.040d {+21h 04m 10s} (J2000),
                 316.291d {+21h 05m 10s} (current),
                 315.296d {+21h 01m 11s} (1950)
GRB_DEC:         -28.020d {-28d 01' 11"} (J2000),
                 -27.952d {-27d 57' 07"} (current),
                 -28.219d {-28d 13' 08"} (1950)
GRB_ERROR:       3.00 [deg radius, statistical only]
DATA_SIGNIF:     24.80 [sigma]
DATA_INTERVAL:   3.072 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          73.00 [deg]
GRB_THETA:        92.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 49"}
SUN_DIST:         75.67 [deg]   Sun_angle= -5.6 [hr] (East of Sun)
MOON_POSTN:       90.14d {+06h 00m 33s}  +18.74d {+18d 44' 33"}
MOON_DIST:       136.89 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.94,-40.11 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      310.31,-10.79 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_501039335.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:36:52 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      2
TRIGGER_NUM:     501039335
GRB_RA:          314.440d {+20h 57m 46s} (J2000),
                 314.689d {+20h 58m 45s} (current),
                 313.701d {+20h 54m 48s} (1950)
GRB_DEC:         -26.190d {-26d 11' 23"} (J2000),
                 -26.124d {-26d 07' 26"} (current),
                 -26.384d {-26d 23' 00"} (1950)
GRB_ERROR:       2.12 [deg radius, statistical only]
DATA_SIGNIF:     44.40 [sigma]
DATA_INTERVAL:   7.168 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          71.00 [deg]
GRB_THETA:        91.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 49"}
SUN_DIST:         74.73 [deg]   Sun_angle= -5.5 [hr] (East of Sun)
MOON_POSTN:       90.14d {+06h 00m 33s}  +18.74d {+18d 44' 33"}
MOON_DIST:       138.36 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       19.79,-38.28 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      309.46, -8.63 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_501039335.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:37:06 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      3
TRIGGER_NUM:     501039335
GRB_RA:          314.790d {+20h 59m 10s} (J2000),
                 315.034d {+21h 00m 08s} (current),
                 314.065d {+20h 56m 16s} (1950)
GRB_DEC:         -22.950d {-22d 56' 59"} (J2000),
                 -22.884d {-22d 53' 00"} (current),
                 -23.145d {-23d 08' 41"} (1950)
GRB_ERROR:       2.00 [deg radius, statistical only]
DATA_SIGNIF:     58.10 [sigma]
DATA_INTERVAL:   11.264 [sec]
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5731.36 SOD {01:35:31.36} UT
GRB_PHI:          70.00 [deg]
GRB_THETA:        88.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 49"}
SUN_DIST:         75.85 [deg]   Sun_angle= -5.5 [hr] (East of Sun)
MOON_POSTN:       90.14d {+06h 00m 34s}  +18.74d {+18d 44' 33"}
MOON_DIST:       137.99 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       23.85,-37.68 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      310.68, -5.61 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2016/bn161117066/quicklook/glg_lc_medres34_bn161117066.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_501039335.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file will not be created/available until ~15 min after the trigger.  
COMMENTS:        The POS_MAP_URL file will not be created/available until ~1.5 min after the notice.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(5.0<100sec) coincident with the SWIFT_BAT event (trignum=722604).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:37:24 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.0530d {+21h 28m 12.71s} (J2000),
                 322.3020d {+21h 29m 12.46s} (current),
                 321.3139d {+21h 25m 15.34s} (1950)
GRB_DEC:         -29.6119d {-29d 36' 42.8"} (J2000),
                 -29.5377d {-29d 32' 15.6"} (current),
                 -29.8303d {-29d 49' 49.2"} (1950)
GRB_ERROR:       4.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       8.04e-09 [erg/cm2/sec]
GRB_SIGNIF:      12.96 [sigma]
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5797.51 SOD {01:36:37.51} UT,   60.8 [sec] since BAT Trigger Time
TAM[0-3]:        327.67 237.20 261.69 243.48
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 49"}
SUN_DIST:         80.33 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.15d {+06h 00m 35s}  +18.74d {+18d 44' 33"}
MOON_DIST:       131.60 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.24,-45.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      314.94,-13.93 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.36 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 .

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:37:30 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.0530d {+21h 28m 12.7s} (J2000),
                 322.3020d {+21h 29m 12.4s} (current),
                 321.3139d {+21h 25m 15.3s} (1950)
GRB_DEC:         -29.6119d {-29d 36' 42.8"} (J2000),
                 -29.5377d {-29d 32' 15.6"} (current),
                 -29.8303d {-29d 49' 49.2"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       168 [cnts]
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5797.51 SOD {01:36:37.51} UT,   60.8 [sec] since BAT Trigger Time
CENTROID_X:      273.45,  raw= 273  [pixels]
CENTROID_Y:      268.94,  raw= 269  [pixels]
ROLL:            253.59 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -68.02
GRB_POS_XRT_Z:   -75.06
IMAGE_URL:       sw00722604000msxps_rw.img
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 50"}
SUN_DIST:         80.33 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.15d {+06h 00m 35s}  +18.74d {+18d 44' 34"}
MOON_DIST:       131.60 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.24,-45.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      314.94,-13.93 [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 .

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:37:52 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.0530d {+21h 28m 12.7s} (J2000),
                 322.3020d {+21h 29m 12.4s} (current),
                 321.3139d {+21h 25m 15.3s} (1950)
GRB_DEC:         -29.6119d {-29d 36' 42.8"} (J2000),
                 -29.5377d {-29d 32' 15.6"} (current),
                 -29.8303d {-29d 49' 49.2"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       168 [cnts]
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5797.51 SOD {01:36:37.51} UT,   60.8 [sec] since BAT Trigger Time
CENTROID_X:      273.45,  raw= 273  [pixels]
CENTROID_Y:      268.94,  raw= 269  [pixels]
ROLL:            253.59 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -68.02
GRB_POS_XRT_Z:   -75.06
IMAGE_URL:       sw00722604000msxps_rw.img
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 50"}
SUN_DIST:         80.33 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.15d {+06h 00m 36s}  +18.74d {+18d 44' 34"}
MOON_DIST:       131.60 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.24,-45.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      314.94,-13.93 [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 .

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:39:37 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.070d {+21h 28m 17s} (J2000),
                 322.319d {+21h 29m 17s} (current),
                 321.331d {+21h 25m 19s} (1950)
GRB_DEC:         -29.629d {-29d 37' 43"} (J2000),
                 -29.555d {-29d 33' 16"} (current),
                 -29.847d {-29d 50' 50"} (1950)
GRB_DATE:        17709 TJD;   322 DOY;   16/11/17
GRB_TIME:        5736.68 SOD {01:35:36.68} UT
TRIGGER_INDEX:   146
GRB_PHI:         -172.97 [deg]
GRB_THETA:        12.37 [deg]
DELTA_TIME:      -24.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     65.52 [sigma]
IMAGE_SIGNIF:    19.39 [sigma]
LC_URL:          sw00722604000msb.lc
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 51"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.17d {+06h 00m 41s}  +18.74d {+18d 44' 36"}
MOON_DIST:       131.60 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.22,-45.60 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      314.95,-13.95 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 225.92,16.13 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:39:54 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.624d {-29d 37' 25"} (J2000)
POINT_ROLL:      253.596d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5805.74 SOD {01:36:45.74} UT,   69.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.688
N_STARS:         77
X_OFFSET:        544 [pixels]
Y_OFFSET:        496 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1455 [pixels]
DET_THRESH:      16
PHOTO_THRESH:    9
SL_URL:          sw00722604000msufc0069.fits
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 51"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.17d {+06h 00m 41s}  +18.74d {+18d 44' 36"}
MOON_DIST:       131.59 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:40:21 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.624d {-29d 37' 25"} (J2000)
POINT_ROLL:      253.596d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5805.74 SOD {01:36:45.74} UT,   69.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.688
N_STARS:         77
X_OFFSET:        544 [pixels]
Y_OFFSET:        496 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1455 [pixels]
DET_THRESH:      16
PHOTO_THRESH:    9
SL_URL:          sw00722604000msufc0069.fits
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 51"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.18d {+06h 00m 43s}  +18.74d {+18d 44' 36"}
MOON_DIST:       131.60 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:41:23 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.624d {-29d 37' 25"} (J2000)
ROLL:            253.596d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5805.74 SOD {01:36:45.74} UT,   69.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     501039422
X_OFFSET:        990 [pixels]
Y_OFFSET:        914 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1150
Y_GRB_POS:       1074
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0087.fits
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 52"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.19d {+06h 00m 45s}  +18.74d {+18d 44' 37"}
MOON_DIST:       131.61 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:41:41 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.624d {-29d 37' 25"} (J2000)
ROLL:            253.596d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5805.74 SOD {01:36:45.74} UT,   69.1 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     501039422
X_OFFSET:        990 [pixels]
Y_OFFSET:        914 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1150
Y_GRB_POS:       1074
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0087.fits
SUN_POSTN:       232.79d {+15h 31m 10s}  -19.05d {-19d 02' 52"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.19d {+06h 00m 46s}  +18.74d {+18d 44' 38"}
MOON_DIST:       131.61 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:43:26 UT
NOTICE_TYPE:     Swift-UVOT Position
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.0521d {+21h 28m 12.50s} (J2000),
                 322.3011d {+21h 29m 12.25s} (current),
                 321.3130d {+21h 25m 15.12s} (1950)
GRB_DEC:         -29.6135d {-29d 36' 48.5"} (J2000),
                 -29.5393d {-29d 32' 21.3"} (current),
                 -29.8319d {-29d 49' 54.9"} (1950)
GRB_ERROR:       0.6 [arcsec radius, statistical only]
GRB_MAG:         18.39 +/- 0.14 [mag]
FILTER:          10, White
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  5803.00 SOD {01:36:43.00} UT,   66.3 [sec] since BAT Trigger Time
SUN_POSTN:       232.79d {+15h 31m 11s}  -19.05d {-19d 02' 53"}
SUN_DIST:         80.33 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.21d {+06h 00m 51s}  +18.74d {+18d 44' 39"}
MOON_DIST:       131.65 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.24,-45.58 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      314.94,-13.93 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT UVOT Position Notice.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The UVOT position is 6.5 arcsec from the XRT position.  
COMMENTS:        Result based on Genie data.  
COMMENTS:        Notice generated automatically.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:47:08 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 23"} (J2000)
POINT_ROLL:      253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6017.62 SOD {01:40:17.62} UT,   280.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.997
N_STARS:         35
X_OFFSET:        670 [pixels]
Y_OFFSET:        594 [pixels]
X_MAX:           1629 [pixels]
Y_MAX:           1553 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00722604000msufc0280.fits
SUN_POSTN:       232.80d {+15h 31m 11s}  -19.05d {-19d 02' 55"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.25d {+06h 01m 00s}  +18.75d {+18d 44' 43"}
MOON_DIST:       131.66 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:47:24 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 23"} (J2000)
POINT_ROLL:      253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6017.62 SOD {01:40:17.62} UT,   280.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.997
N_STARS:         35
X_OFFSET:        670 [pixels]
Y_OFFSET:        594 [pixels]
X_MAX:           1629 [pixels]
Y_MAX:           1553 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00722604000msufc0280.fits
SUN_POSTN:       232.80d {+15h 31m 11s}  -19.05d {-19d 02' 56"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.25d {+06h 01m 01s}  +18.75d {+18d 44' 43"}
MOON_DIST:       131.67 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:48:57 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 23"} (J2000)
ROLL:            253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6017.62 SOD {01:40:17.62} UT,   280.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     501039634
X_OFFSET:        990 [pixels]
Y_OFFSET:        914 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1150
Y_GRB_POS:       1074
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0298.fits
SUN_POSTN:       232.80d {+15h 31m 12s}  -19.05d {-19d 02' 56"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.27d {+06h 01m 05s}  +18.75d {+18d 44' 45"}
MOON_DIST:       131.68 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:48:59 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 23"} (J2000)
ROLL:            253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6017.62 SOD {01:40:17.62} UT,   280.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     501039634
X_OFFSET:        990 [pixels]
Y_OFFSET:        914 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1150
Y_GRB_POS:       1074
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0298.fits
SUN_POSTN:       232.80d {+15h 31m 12s}  -19.05d {-19d 02' 56"}
SUN_DIST:         80.35 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.27d {+06h 01m 05s}  +18.75d {+18d 44' 45"}
MOON_DIST:       131.68 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #20179
J. R. Cummings (NASA/UMBC), S. D. Barthelmy (GSFC), D. N. Burrows (PSU), V. D'Elia (ASDC), J. A. Kennea (PSU), H. A. Krimm (CRESST/NSF/USRA), F. E. Marshall (NASA/GSFC) and M. H. Siegel (PSU) report on behalf of the Swift Team:
At 01:35:36 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 161117A (trigger=722604). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 322.070, -29.629 which is
```
   RA(J2000)  =  21h 28m 17s
   Dec(J2000) = -29d 37' 43"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows several bright peaks with a total duration of about 160 sec. The peak count rate was ~8000 counts/sec (15-350 keV), at ~110 sec after the trigger.
The XRT began observing the field at 01:36:37.5 UT, 60.8 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 322.0530, -29.6119 which is equivalent to:
```
   RA(J2000)  = +21h 28m 12.72s
   Dec(J2000) = -29d 36' 42.8"
```
with an uncertainty of 4.8 arcseconds (radius, 90% containment). This location is 81 arcseconds from the BAT onboard position, within the BAT error circle. No event data are yet available to determine the column density using X-ray spectroscopy.
The initial flux in the 2.5 s image was 8.04e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 69 seconds after the BAT trigger. There is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image at
```
  RA(J2000)  =	21:28:12.53 = 322.05219
  DEC(J2000) = -29:36:48.9  = -29.61358
```
with a 90%-confidence error radius of about 0.62 arc sec. This position is 6.6 arc sec. from the center of the XRT error circle. The estimated magnitude is 18.40 with a 1-sigma error of about 0.15. No correction has been made for the expected extinction corresponding to E(B-V) of 0.06.
Burst Advocate for this burst is J. R. Cummings (jayc AT milkyway.gsfc.nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:55:09 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 22"} (J2000)
POINT_ROLL:      253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6595.11 SOD {01:49:55.11} UT,   858.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.370
N_STARS:         163
X_OFFSET:        430 [pixels]
Y_OFFSET:        354 [pixels]
X_MAX:           1869 [pixels]
Y_MAX:           1793 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00722604000msufc0858.fits
SUN_POSTN:       232.80d {+15h 31m 13s}  -19.05d {-19d 03' 00"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.34d {+06h 01m 21s}  +18.75d {+18d 44' 51"}
MOON_DIST:       131.74 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:55:28 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 22"} (J2000)
POINT_ROLL:      253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6595.11 SOD {01:49:55.11} UT,   858.4 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        3.370
N_STARS:         163
X_OFFSET:        430 [pixels]
Y_OFFSET:        354 [pixels]
X_MAX:           1869 [pixels]
Y_MAX:           1793 [pixels]
DET_THRESH:      15
PHOTO_THRESH:    8
SL_URL:          sw00722604000msufc0858.fits
SUN_POSTN:       232.80d {+15h 31m 13s}  -19.05d {-19d 03' 00"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.34d {+06h 01m 22s}  +18.75d {+18d 44' 51"}
MOON_DIST:       131.74 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:55:45 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     722604,   Seg_Num: 0
GRB_RA:          322.0527d {+21h 28m 12.64s} (J2000),
                 322.3017d {+21h 29m 12.39s} (current),
                 321.3136d {+21h 25m 15.27s} (1950)
GRB_DEC:         -29.6140d {-29d 36' 50.4"} (J2000),
                 -29.5398d {-29d 32' 23.1"} (current),
                 -29.8324d {-29d 49' 56.7"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6189.00 SOD {01:43:09.00} UT,   452.3 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       232.80d {+15h 31m 13s}  -19.05d {-19d 03' 01"}
SUN_DIST:         80.32 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.34d {+06h 01m 23s}  +18.75d {+18d 44' 51"}
MOON_DIST:       131.77 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.24,-45.58 [deg] galactic lon,lat of the burst
ECL_COORDS:      314.94,-13.93 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        This is an Update Notice -- the RA,Dec values herein supersede the previous XRT_POS Notice.  
COMMENTS:        TAM values, flux and significance fields are not valid.  
COMMENTS:        This position was automatically generated on the ground using  
COMMENTS:        Photon Counting data telemetered via TDRSS (SPER data).  
COMMENTS:        See http://www.swift.ac.uk/sper/docs.php for details.  
COMMENTS:        This position was enhanced using UVOT field astrometry.  
COMMENTS:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.11% < P(seren) < 0.58%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:56:35 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 22"} (J2000)
ROLL:            253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6595.11 SOD {01:49:55.11} UT,   858.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     501040212
X_OFFSET:        989 [pixels]
Y_OFFSET:        913 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1149
Y_GRB_POS:       1073
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0876.fits
SUN_POSTN:       232.80d {+15h 31m 13s}  -19.05d {-19d 03' 01"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.35d {+06h 01m 25s}  +18.75d {+18d 44' 52"}
MOON_DIST:       131.75 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Thu 17 Nov 16 01:56:51 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     722604,   Seg_Num: 0
POINT_RA:        322.082d {+21h 28m 20s} (J2000)
POINT_DEC:       -29.623d {-29d 37' 22"} (J2000)
ROLL:            253.594d
IMG_START_DATE:  17709 TJD;   322 DOY;   16/11/17
IMG_START_TIME:  6595.11 SOD {01:49:55.11} UT,   858.4 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     501040212
X_OFFSET:        989 [pixels]
Y_OFFSET:        913 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1149
Y_GRB_POS:       1073
BINNING_INDEX:   1
IM_URL:          sw00722604000msuni0876.fits
SUN_POSTN:       232.80d {+15h 31m 13s}  -19.05d {-19d 03' 01"}
SUN_DIST:         80.34 [deg]   Sun_angle= -6.0 [hr] (East of Sun)
MOON_POSTN:       90.36d {+06h 01m 25s}  +18.75d {+18d 44' 53"}
MOON_DIST:       131.76 [deg]
MOON_ILLUM:      91 [%]
GAL_COORDS:       17.23,-45.61 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      314.96,-13.95 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #20180
Daniele Malesani (DARK/NBI and DTU Space), Thomas Kruehler (MPE), Kasper=20 E. Heintz (Univ. Iceland and DARK/NBI), and Johan P. U. Fynbo (DARK/NBI)=20 report on behalf of a larger collaboration:
We observed the optical afterglow of GRB 161117A (Cummings et al., GCN=20 20179) with the ESO VLT Kueyen equipped with the X-shooter spectrograph.=20 In the acquisition image, taken on 2016 Nov 17.097 UT (0.73 hr after the=20 GRB), the optical afterglow is clearly detected with a magnitude R ~ 19=20 (assuming R =3D 18.10 for the USNO star at RA =3D 21:28:14.70, Dec =3D=20 -29:37:08.8). The seeing was very poor, around 2.5", and the sky=20 conditions were partially cloudy.
Four spectra by 600 s each were collected covering the full X-shooter=20 wavelength range 3000-25,000 AA. A faint trace is detected, down to at=20 least 3800 =C5. Superimposed on it, we are able to identify a number of=20 absorption features which we interpret as due to Mg I, Mg II, and Fe II,=20 all at a common redshift z =3D 1.549.
We acknowledge excellent support from the ESO observing staff in=20 Paranal, in particular Elisabeth Barlett, Eleonora Sani, Steffen Mieske,=20 and Jose Velasquez.
GCN Circular #20181
P. D'Avanzo, D. Fugazza, S. Covino, A. Melandri (INAF/OAB) report on behalf of the REM team:
We observed the field of GRB 161117A (Cummings et al., GCN 20179) with the 60-cm robotic telescope REM located at the La Silla Observatory (Chile). The observations started at 01:37:05 UT, 89 seconds after the burst, and were carried out simultaneously in the g, r, i, z and H bands.
A preliminary photometry indicates that the optical and NIR afterglow (Cummings et al., GCN 20179; Malesani et al. GCN 20180) is detected with a magnitude H = 16.4 +/- 0.3 at t-t0 = 233 s, and r = 18.3 +/- 0.3 at t-t0 = 808 s. Magnitudes are in the AB system and have been calibrated with respect to the 2MASS (H-band) and APASS (r-band) catalogues.
GCN Circular #20184
M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team.
Using 7318 s of XRT Photon Counting mode data and 11 UVOT images for GRB 161117A, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 322.05243, -29.61401 which is equivalent to:
```
RA (J2000): 21h 28m 12.58s
Dec (J2000): -29d 36' 50.4"
```
with an uncertainty of 1.4 arcsec (radius, 90% confidence).
This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177).
This circular was automatically generated, and is an official product of the Swift-XRT team.
GCN Circular #20185
K.L. Page (U. Leicester), P. D'Avanzo (INAF-OAB), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), D.N. Burrows (PSU), T.G.R. Roegiers (PSU), L.M. McCauley (PSU), B. Mingo (U. Leicester), A.P. Beardmore (U. Leicester) and J.R. Cummings report on behalf of the Swift-XRT team:
We have analysed 7.7 ks of XRT data for GRB 161117A (Cummings et al. GCN Circ. 20179), from 52 s to 19.0 ks after the BAT trigger. The data comprise 384 s in Windowed Timing (WT) mode (the first 7 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Goad et al. (GCN Circ. 20184).
The late-time light curve (from T0+5.1 ks) can be modelled with a power-law decay with a decay index of alpha=0.92 (+/-0.09).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.322 (+/-0.028). The best-fitting absorption column is 2.9 (+/-0.8) x 10^21 cm^-2, at a redshift of 1.549, in addition to the Galactic value of 4.4 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.94 (+/-0.08) and a best-fitting absorption column of 7.4 (+1.9, -1.8) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.5 x 10^-11 (4.4 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Galactic foreground: 4.4 x 10^20 cm^-2
Intrinsic column:    7.4 (+1.9, -1.8) x 10^21 cm^-2 at z=1.549
Photon index:	     1.94 (+/-0.08)
```
If the light curve continues to decay with a power-law decay index of 0.92, the count rate at T+24 hours will be 0.050 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.7 x 10^-12 (2.2 x 10^-12) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00722604.
This circular is an official product of the Swift-XRT team.
GCN Circular #20188
M. Stamatikos (OSU), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (NSF/USRA), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 161117A (trigger #722604) (Cummings, et al., GCN Circ. 20179). The BAT ground-calculated position is RA, Dec = 322.053, -29.612 deg which is
```
  RA(J2000)  =  21h 28m 12.8s
  Dec(J2000) = -29d 36' 41.7"
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
The mask-weighted light curve shows three main overlapping peaks, of increasing amplitude. The tops of the peaks are at T+3, T+35 and T+112 s, respectively. The burst faded to baseline by about 160 seconds. T90 (15-350 keV) is 125.7 +- 1.1 sec (estimated error including systematics).
The time-averaged spectrum from T-6.00 to T+154.44 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 1.19 +- 0.12, and Epeak of 73.9 +- 4.3 keV (chi squared 33.82 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 2.0 +- 0.0 x 10^-5 erg/cm2 and the 1-sec peak flux measured from T+111.35 sec in the 15-150 keV band is 6.8 +- 0.3 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.82 +- 0.00 (chi squared 122.02 for 57 d.o.f.). All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/722604/BA/
GCN Circular #20190
F. E. Marshall (NASA/GSFC) and J. R. Cummings (NASA/UMBC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 161117A 69 s after the BAT trigger (Cummings et al., GCN Circ. 20179). A source consistent with the XRT position (Goad et al., GCN Circ. 20184) is detected in the initial UVOT exposures.
The preliminary UVOT position is:
```
    RA  (J2000) =  21:28:12.55 = 322.05230 (deg.)
    Dec (J2000) = -29:36:49.1  = -29.61365 (deg.)
```
with an estimated uncertainty of 0.44 arc sec. (radius, 90% confidence).
Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are in the table below. The lack of detections in the m2 and w2 filters is consistent with the redshift of 1.549 reported by Malesani et al. (GCN Circ. 20180).
```
Filter         T_start(s)   T_stop(s)      Exp(s)           Mag

white               69          219          147         18.26 +/- 0.05
v                  611         6146          255         18.77 +/- 0.19
b                  536         5531          236         19.42 +/- 0.17
u                  281          531          246         19.48 +/- 0.20
w1                 660         6556          255         19.48 +/- 0.25
m2                1064        13173          712        >20.2
w2                 586        11751         1141        >20.8
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.06 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #20192
B. Mailyan (UAH) and A. Goldstein (USRA) report on behalf of the Fermi GBM Team:
"At 01:35:31.36 UT on 17 November 2016, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 161117A (trigger 501039335/161117066), which was also detected by Swift (Cummings et al., GCN 20179). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 94 degrees.
The GBM light curve shows bright, multiple peaks with a duration (T90) of about 122 s (50-300 keV). The time-averaged spectrum from T0-4.7 s to T0+129.4 s is adequately fit by a Band function with Epeak = 68.04 +/- 2.66 keV, alpha = -0.43 +/- 0.07, and beta = -2.27 +/- 0.04.
The event fluence (10-1000 keV) in this time interval is (3.93 +/- 0.079)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+116 s in the 10-1000keV band is 10.3 +/- 0.5 ph/s/cm^2.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN Circular #20193
J. Mao, X. Yu, and J.-M. Bai (YNAO) report:
We observed the field of GRB 161117A (Cummings et al., GCN 20179) with the 2.4-meter optical telescope at Gao-Mei-Gu (GMG) station of Yunnan Observatories. Observations began from 11:07:21 UT, Nov. 17th, 2016, about 9.5 hours after the trigger. We did not detect any source at the afterglow position down to a limit of R~20.6 mag.
GCN Circular #20194
Klotz A., Turpin D., Atteia J.L. (CNRS-OMP-IRAP), Boer, M., Laugier, R. (CNRS-ARTEMIS), Gendre B. (UVI - Etelman Obs.) report:
We imaged the field of GRB 161117A detected by SWIFT (trigger 722604) with the TAROT robotic telescope (D=25cm) located at the European Southern Observatory, La Silla observatory, Chile.
The observations started 26s after the GRB trigger (14s after the notice). The elevation of the field decreased from 48 degrees above horizon and weather conditions were good.
A difficulty is the presence of the bright star NOMAD1 0603-1050209 (ra=322.0444192 dec=-29.6163561) of magnitude R=11.060 located at 25 arcsec from the the GRB provided at by Marshall et al. (GCNC 20190).
The first image is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). We do not detect any OT with a limiting magnitude of:
t0+26s to t0+86s : Rlim = 16.8
Magnitudes were estimated with the nearby NOMAD1 stars and are not corrected for galactic dust extinction.
GCN Circular #20195
R.Podesta, C.Lopez, F. Podesta Observatorio Astronomico Felix Aguilar (OAFA) , National University of San Juan, Argentina
H. Levato, C. Saffe Instituto de Ciencias Astronomicas,de la Tierra y del Espacio (ICATE), San Juan, Argentina
V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, A.V.Krylov, I.Gorbunov, P.Balanutsa, A.Kuznetsov, V.V.Chazov Lomonosov Moscow State University, Sternberg Astronomical Institut of MSU
K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Senik Kislovodsk Solar Station of the Pulkovo Observatory
D.Buckley, S. Potter, A.Kniazev, M.Kotze South African Astronomical Observatory
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias
MASTER-OAFA robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in OAFA was pointed to the GRB161117A 22 sec after notice time and 31 sec after trigger time at 2016-11-17 01:36:13 UT. On our first (10s exposure) set we found optical transient within SWIFT error box (Cummings et al., 20179) at the Swift UVOT position (Cummings et al., 20179; Daniele Malesani et al. GCN 20180;). The OT magnitude ~17.0 . The 5-sigma upper limit has been about 17.5 mag
After several minutes OT disapear and apear against around 01 35 56 UT with unfiltered (red) magnirude ~ 18.0 (cf D'Avanzo et al., GCN 20181;).
The observations started at zenit distance = 42 degrees, galaxy latitude b = -46 degree. The moon (91 % bright part) below the horizon (The altitude of the Moon is -1 degree ). The sun altitude is -25.6 degree. The object can be observed till 2016-11-17 05:44:35 UT.
The message may be cited.
GCN Circular #20196
Y. Kitaoka, T. Sakamoto, A. Yoshida (AGU)
We observed the field of GRB 161117A detected by Swift (Cummings et al., GCN Circ. 20179) with the iTelescope.Net (http://www.itelescope.net) T11 (20" Plane wave ) telescope located at the AstroCamp Observatory (Mayhill, New Mexico, USA). 20 images of 60 sec exposures were taken in the R filter starting from November 17 02:02:56 (UT) about 27 minutes after the trigger and stopped on November 17 02:45:49 (UT). We do not detect the optical afterglow both in the individual images and the stacked image at the optical afterglow position (Marshall et al., GCN Circ. 20190). The estimated five sigma upper limit of the combined image (total exposure of 1200 sec) is ~16.9 using the USNO-B1 catalog.
GCN Circular #20197
D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, P. Oleynik, M. Ulanov, A. Tsvetkova, A. Lysenko, A. Kozlova, and T. Cline on behalf of the Konus-Wind team, report:
The long-duration GRB 161117A (Swift-BAT observation: Cummings et al., GCN Circ. 20179; Fermi-GBM detection: Mailyan & Goldstein, GCN Circ. 20192) triggered Konus-Wind at T0=5738.426 s UT (01:35:38.426).
The burst light curve shows three bright emission peaks in the interval from ~T0-7 s to ~T0+130 s. The emission is seen up to ~1 MeV.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB161117_T05738/
As observed by Konus-Wind, the burst had a fluence of 2.41(-0.14,+0.15)x10^-5 erg/cm2, and a 64-ms peak flux, measured from T0-0.342 s, of 1.94(-0.77,+0.78)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-averaged spectrum of the burst (measured from T0 to T0+123.136 s) is best fit in the 20 keV - 1 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.86(-0.33,+0.36) and Ep = 69(-7,+6) keV (chi2 = 40/47 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta <-3.5 (chi2 =40/46 dof).
The spectrum near the maximum count rate (measured from T0 to T0+8.448 s) is best fit in the 20 keV - 1 MeV range by a power law with exponential cutoff model: with alpha = -0.56(-0.42,+0.52) and Ep = 139(-20,+27) keV (chi2 = 49/47 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.6 (chi2 = 49/46 dof).
Assuming the redshift z=1.549 (Malesani et al., GCN 20180) and a standard cosmology model with H_0 = 70 km/s/Mpc, Omega_M = 0.27, and Omega_Lambda = 0.73, we estimate the following rest-frame parameters: the isotropic energy release E_iso is ~1.3x10^53 erg, the peak luminosity L_iso is ~3.0x10^52 erg/s, and the rest-frame peak energy of the time-integrated spectrum, Ep,i, is ~176 keV.
All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
GCN Circular #20202
B. E. Cobb (GWU), reports:
Using the ANDICAM instrument on the 1.3m telescope at CTIO, we obtained optical/IR imaging of the error region of GRB 161117A (GCN 20179, Cummings et al.) at two epochs (with mid-exposure times of 2016-11-17 02:38 UT & 2016-11-18 01:47 UT). For each epoch, several dithered images were obtained with total summed exposure times of 15 min in V and I and 12 min in J and K.
The fading afterglow of GRB 161117A (e.g. GCN 20179, Cummings et al.; GCN 20180, Malesani et al.; GCN 20181, D'Avanzo et al.) was detected with the following preliminary magnitudes (or 3-sigma limits):
```
mid-exposure
time post-burst
(hours)            V mag            I mag             J mag             K mag
1.03333          19.42+/-0.10  18.69+/-0.07  18.40+/-0.15  16.49+/-0.11

24.19361        >22.3              >21.1             >18.5             >16.7
```
(Optical photometry is calibrated against Landolt standard stars and IR photometry is calibrated against 2MASS stars in the field.)

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Jochen Greiner, last update: 22-Nov-2016 [Disclaimer]