Gamma-ray Burst 190519A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:00 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.764d {+07h 39m 03s} (J2000),
                 114.934d {+07h 39m 44s} (current),
                 114.327d {+07h 37m 19s} (1950)
GRB_DEC:         -38.824d {-38d 49' 26"} (J2000),
                 -38.869d {-38d 52' 09"} (current),
                 -38.708d {-38d 42' 29"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2291 [cnts]    Image_Peak=72 [image_cnts]
TRIGGER_DUR:     0.512 [sec] 
TRIGGER_INDEX:   483     E_range: 50-350 keV
BKG_INTEN:       16629 [cnts]
BKG_TIME:        26729.07 SOD {07:25:29.07} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26739.43 SOD {07:25:39.43} UT
GRB_PHI:         128.77 [deg]
GRB_THETA:        39.94 [deg]
SOLN_STATUS:     0x20002083
RATE_SIGNIF:     45.02 [sigma]
IMAGE_SIGNIF:    6.76 [sigma]
MERIT_PARAMS:     +1  +0  +0  -1  +3  -3  +0  +1 -16  +0 
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         80.55 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 19s}  -17.35d {-17d 20' 51"}
MOON_DIST:       105.17 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.56, -8.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      129.23,-58.94 [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:        There is a bright star (mag=6.19) 6.54 arcmin from this position.  
COMMENTS:        This is a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 60.44,13.94 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(42.0<100sec) coincident with the FERMI_GBM event (trignum=579943502).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:25:22 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      47
TRIGGER_NUM:     579943502
GRB_RA:          124.683d {+08h 18m 44s} (J2000),
                 124.877d {+08h 19m 31s} (current),
                 124.183d {+08h 16m 44s} (1950)
GRB_DEC:         -31.550d {-31d 33' 00"} (J2000),
                 -31.612d {-31d 36' 41"} (current),
                 -31.393d {-31d 23' 32"} (1950)
GRB_ERROR:       19.83 [deg radius, statistical plus systematic]
GRB_INTEN:       75 [cnts/sec]
DATA_SIGNIF:     6.00 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          78.00 [deg]
GRB_THETA:        75.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      1.60
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      66%  GRB
2nd_MOST_LIKELY:  19%  Distant Particles
DETECTORS:       0,1,1, 0,0,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 27"}
SUN_DIST:         83.72 [deg]   Sun_angle= -4.6 [hr] (East of Sun)
MOON_POSTN:      242.07d {+16h 08m 18s}  -17.35d {-17d 20' 46"}
MOON_DIST:       102.43 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      250.57,  2.49 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      138.12,-49.36 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 185.97,-25.30 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:25:32 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      59
TRIGGER_NUM:     579943502
GRB_RA:          119.600d {+07h 58m 24s} (J2000),
                 119.785d {+07h 59m 08s} (current),
                 119.122d {+07h 56m 29s} (1950)
GRB_DEC:         -33.917d {-33d 55' 00"} (J2000),
                 -33.970d {-33d 58' 12"} (current),
                 -33.780d {-33d 46' 48"} (1950)
GRB_ERROR:       8.23 [deg radius, statistical plus systematic]
GRB_INTEN:       248 [cnts/sec]
DATA_SIGNIF:     21.80 [sigma]
INTEG_TIME:      4.096 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          77.00 [deg]
GRB_THETA:        80.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO:      1.40
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      97%  GRB
2nd_MOST_LIKELY:   1%  Generic SGR
DETECTORS:       0,1,1, 0,0,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 27"}
SUN_DIST:         81.15 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 18s}  -17.35d {-17d 20' 47"}
MOON_DIST:       104.85 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      250.24, -2.39 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      132.97,-53.03 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 185.97,-25.30 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:25:36 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      58
TRIGGER_NUM:     579943502
GRB_RA:          117.560d {+07h 50m 14s} (J2000),
                 117.741d {+07h 50m 58s} (current),
                 117.094d {+07h 48m 23s} (1950)
GRB_DEC:         -35.280d {-35d 16' 47"} (J2000),
                 -35.330d {-35d 19' 47"} (current),
                 -35.152d {-35d 09' 07"} (1950)
GRB_ERROR:       7.35 [deg radius, statistical only]
DATA_SIGNIF:     10.70 [sigma]
DATA_INTERVAL:   4.096 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          77.00 [deg]
GRB_THETA:        82.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4153 (Gnd S/W Version number)
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         80.44 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 18s}  -17.35d {-17d 20' 48"}
MOON_DIST:       105.47 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      250.55, -4.53 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      131.02,-54.86 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_579943502.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.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:01 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      88
TRIGGER_NUM:     579943502
GRB_RA:          120.300d {+08h 01m 12s} (J2000),
                 120.487d {+08h 01m 57s} (current),
                 119.818d {+07h 59m 16s} (1950)
GRB_DEC:         -33.400d {-33d 23' 59"} (J2000),
                 -33.455d {-33d 27' 15"} (current),
                 -33.261d {-33d 15' 37"} (1950)
GRB_ERROR:       4.38 [deg radius, statistical plus systematic]
GRB_INTEN:       898 [cnts/sec]
DATA_SIGNIF:     48.60 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          77.00 [deg]
GRB_THETA:        80.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.90
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      98%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,1,1, 0,0,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         81.39 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 19s}  -17.35d {-17d 20' 51"}
MOON_DIST:       104.65 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      250.11, -1.62 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      133.60,-52.35 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 185.97,-25.30 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the CALET_GBM event (trignum=1242285834).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:08 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      91
TRIGGER_NUM:     579943502
GRB_RA:          120.450d {+08h 01m 48s} (J2000),
                 120.637d {+08h 02m 33s} (current),
                 119.967d {+07h 59m 52s} (1950)
GRB_DEC:         -33.283d {-33d 16' 59"} (J2000),
                 -33.338d {-33d 20' 16"} (current),
                 -33.143d {-33d 08' 35"} (1950)
GRB_ERROR:       3.97 [deg radius, statistical plus systematic]
GRB_INTEN:       1459 [cnts/sec]
DATA_SIGNIF:     79.50 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          77.00 [deg]
GRB_THETA:        80.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      1.02
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      98%  GRB
2nd_MOST_LIKELY:   1%  Generic SGR
DETECTORS:       0,1,1, 0,0,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         81.44 [deg]   Sun_angle= -4.3 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 20s}  -17.35d {-17d 20' 52"}
MOON_DIST:       104.60 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      250.07, -1.45 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      133.73,-52.20 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 185.97,-25.30 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(2.0<100sec) coincident with the CALET_GBM event (trignum=1242285834).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:27 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      1
TRIGGER_NUM:     579943502
GRB_RA:          126.910d {+08h 27m 38s} (J2000),
                 127.091d {+08h 28m 22s} (current),
                 126.443d {+08h 25m 46s} (1950)
GRB_DEC:         -37.860d {-37d 51' 35"} (J2000),
                 -37.925d {-37d 55' 29"} (current),
                 -37.694d {-37d 41' 36"} (1950)
GRB_ERROR:       5.41 [deg radius, statistical only]
DATA_SIGNIF:     16.80 [sigma]
DATA_INTERVAL:   12.288 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          84.00 [deg]
GRB_THETA:        78.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         88.24 [deg]   Sun_angle= -4.8 [hr] (East of Sun)
MOON_POSTN:      242.08d {+16h 08m 20s}  -17.35d {-17d 20' 55"}
MOON_DIST:        97.75 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      256.80,  0.37 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      144.75,-54.51 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_579943502.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(35.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=8282).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:26:54 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      2
TRIGGER_NUM:     579943502
GRB_RA:          117.660d {+07h 50m 38s} (J2000),
                 117.827d {+07h 51m 19s} (current),
                 117.228d {+07h 48m 55s} (1950)
GRB_DEC:         -40.280d {-40d 16' 47"} (J2000),
                 -40.330d {-40d 19' 48"} (current),
                 -40.152d {-40d 09' 05"} (1950)
GRB_ERROR:       3.11 [deg radius, statistical only]
DATA_SIGNIF:     24.60 [sigma]
DATA_INTERVAL:   15.360 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          81.00 [deg]
GRB_THETA:        85.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 28"}
SUN_DIST:         83.21 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:      242.09d {+16h 08m 21s}  -17.35d {-17d 20' 58"}
MOON_DIST:       102.51 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      254.94, -6.97 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      134.31,-59.54 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_579943502.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(35.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=8282).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:28:11 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      3
TRIGGER_NUM:     579943502
GRB_RA:          117.700d {+07h 50m 48s} (J2000),
                 117.867d {+07h 51m 28s} (current),
                 117.268d {+07h 49m 04s} (1950)
GRB_DEC:         -40.250d {-40d 15' 00"} (J2000),
                 -40.300d {-40d 18' 00"} (current),
                 -40.122d {-40d 07' 16"} (1950)
GRB_ERROR:       2.75 [deg radius, statistical only]
DATA_SIGNIF:     25.60 [sigma]
DATA_INTERVAL:   18.432 [sec]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          81.00 [deg]
GRB_THETA:        85.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 29"}
SUN_DIST:         83.22 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:      242.10d {+16h 08m 24s}  -17.35d {-17d 21' 09"}
MOON_DIST:       102.51 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      254.93, -6.93 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      134.35,-59.50 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_579943502.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(35.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=8282).

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sun 19 May 19 07:34:15 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     579943502
GRB_RA:          114.860d {+07h 39m 26s} (J2000),
                 115.038d {+07h 40m 09s} (current),
                 114.400d {+07h 37m 36s} (1950)
GRB_DEC:         -35.520d {-35d 31' 11"} (J2000),
                 -35.566d {-35d 33' 55"} (current),
                 -35.404d {-35d 24' 13"} (1950)
GRB_ERROR:       1.00 [deg radius, statistical only]
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26697.34 SOD {07:24:57.34} UT
GRB_PHI:          76.00 [deg]
GRB_THETA:        85.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41531 (Gnd S/W Version number)
SUN_POSTN:        55.81d {+03h 43m 13s}  +19.73d {+19d 43' 32"}
SUN_DIST:         78.73 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.16d {+16h 08m 38s}  -17.37d {-17d 22' 00"}
MOON_DIST:       107.15 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      249.67, -6.56 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      127.47,-55.77 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_locplot_all_bn190519309.png
COMMENTS:        Fermi-GBM Final Position.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
COMMENTS:        The LC_URL file should be available by the time this FINAL notice is produced.  
COMMENTS:        This notice was generated completely by automated pipeline processing.  
COMMENTS:        This is likely a Long GRB.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(35.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=8282).

GCN NOTICE

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Sun 19 May 19 07:26:23 UT 
NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
TRIGGER_NUM:    8282,   Sub_Num: 0
GRB_INTEN:      9.21 [sigma]   
GRB_TIME:       26732.24 SOD {07:25:32.24} UT
GRB_DATE:       18622 TJD;   139 DOY;   19/05/19
COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
COMMENTS:       Time_Scale=2.0000 and Time_Error=1.0000.
COMMENTS:
COMMENTS:       NOTE: This SPIACS event is temporally(35.0<100sec) coincident with the FERMI_GBM event (trignum=579943502).
COMMENTS:
COMMENTS:       The SPIACS lightcurve can be found at:
COMMENTS:       ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2019-05/2019-05-19T07-25-32.0575-06116-11152-0.lc

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:27:29 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.7674d {+07h 39m 04.17s} (J2000),
                 114.9369d {+07h 39m 44.85s} (current),
                 114.3301d {+07h 37m 19.22s} (1950)
GRB_DEC:         -38.8038d {-38d 48' 13.6"} (J2000),
                 -38.8491d {-38d 50' 56.9"} (current),
                 -38.6881d {-38d 41' 17.2"} (1950)
GRB_ERROR:       6.6 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       4.35e-10 [erg/cm2/sec]
GRB_SIGNIF:      4.58 [sigma]
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26824.36 SOD {07:27:04.36} UT,   84.9 [sec] since BAT Trigger Time
TAM[0-3]:        327.64 237.18 261.54 243.65
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 29"}
SUN_DIST:         80.54 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.09d {+16h 08m 23s}  -17.35d {-17d 21' 03"}
MOON_DIST:       105.18 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      129.22,-58.92 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 1.22 arcmin from the BAT position.  
COMMENTS:        There is a bright star (mag=6.19) 6.30 arcmin from the XRT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:27:39 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.7674d {+07h 39m 04.1s} (J2000),
                 114.9369d {+07h 39m 44.8s} (current),
                 114.3301d {+07h 37m 19.2s} (1950)
GRB_DEC:         -38.8038d {-38d 48' 13.6"} (J2000),
                 -38.8491d {-38d 50' 56.9"} (current),
                 -38.6881d {-38d 41' 17.2"} (1950)
GRB_ERROR:       6.5 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       21 [cnts]
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26824.36 SOD {07:27:04.36} UT,   84.9 [sec] since BAT Trigger Time
CENTROID_X:      315.38,  raw= 315  [pixels]
CENTROID_Y:      277.99,  raw= 278  [pixels]
ROLL:            305.11 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -48.09
GRB_POS_XRT_Z:   21.18
IMAGE_URL:       sw00904394000msxps_rw.img
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 29"}
SUN_DIST:         80.54 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.10d {+16h 08m 23s}  -17.35d {-17d 21' 05"}
MOON_DIST:       105.18 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      129.22,-58.92 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:27:44 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.7674d {+07h 39m 04.1s} (J2000),
                 114.9369d {+07h 39m 44.8s} (current),
                 114.3301d {+07h 37m 19.2s} (1950)
GRB_DEC:         -38.8038d {-38d 48' 13.6"} (J2000),
                 -38.8491d {-38d 50' 56.9"} (current),
                 -38.6881d {-38d 41' 17.2"} (1950)
GRB_ERROR:       6.5 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       21 [cnts]
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26824.36 SOD {07:27:04.36} UT,   84.9 [sec] since BAT Trigger Time
CENTROID_X:      315.38,  raw= 315  [pixels]
CENTROID_Y:      277.99,  raw= 278  [pixels]
ROLL:            305.11 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   -48.09
GRB_POS_XRT_Z:   21.18
IMAGE_URL:       sw00904394000msxps_rw.img
SUN_POSTN:        55.80d {+03h 43m 12s}  +19.72d {+19d 43' 29"}
SUN_DIST:         80.54 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.10d {+16h 08m 23s}  -17.35d {-17d 21' 05"}
MOON_DIST:       105.19 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.20 [deg] galactic lon,lat of the burst
ECL_COORDS:      129.22,-58.92 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:29:30 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     904394,   Seg_Num: 0
GRB_RA:          114.764d {+07h 39m 03s} (J2000),
                 114.934d {+07h 39m 44s} (current),
                 114.327d {+07h 37m 19s} (1950)
GRB_DEC:         -38.824d {-38d 49' 26"} (J2000),
                 -38.869d {-38d 52' 09"} (current),
                 -38.708d {-38d 42' 29"} (1950)
GRB_DATE:        18622 TJD;   139 DOY;   19/05/19
GRB_TIME:        26739.43 SOD {07:25:39.43} UT
TRIGGER_INDEX:   483
GRB_PHI:         128.77 [deg]
GRB_THETA:        39.94 [deg]
DELTA_TIME:      -76.00 [sec]
TRIGGER_DUR:     0.512 [sec] 
SOLN_STATUS:     0x2083
RATE_SIGNIF:     45.02 [sigma]
IMAGE_SIGNIF:    6.76 [sigma]
LC_URL:          sw00904394000msb.lc
SUN_POSTN:        55.80d {+03h 43m 13s}  +19.72d {+19d 43' 30"}
SUN_DIST:         80.55 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.11d {+16h 08m 27s}  -17.36d {-17d 21' 20"}
MOON_DIST:       105.18 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.56, -8.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      129.23,-58.94 [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:        There is a bright star (mag=6.19) 6.54 arcmin from this position.  
COMMENTS:        This is a GRB.  
COMMENTS:        Since the IMAGE_SIGNIF is less than 7 sigma, this is a questionable detection.  
COMMENTS:        This trigger occurred at longitude,latitude = 60.44,13.94 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:37:26 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
POINT_ROLL:      305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26889.87 SOD {07:28:09.87} UT,   150.4 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.152
N_STARS:         190
X_OFFSET:        0 [pixels]
Y_OFFSET:        0 [pixels]
X_MAX:           2047 [pixels]
Y_MAX:           2047 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00904394000msufc0150.fits
SUN_POSTN:        55.81d {+03h 43m 14s}  +19.73d {+19d 43' 34"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.19d {+16h 08m 45s}  -17.37d {-17d 22' 27"}
MOON_DIST:       105.23 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:37:42 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
POINT_ROLL:      305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26889.87 SOD {07:28:09.87} UT,   150.4 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.152
N_STARS:         190
X_OFFSET:        0 [pixels]
Y_OFFSET:        0 [pixels]
X_MAX:           2047 [pixels]
Y_MAX:           2047 [pixels]
DET_THRESH:      9
PHOTO_THRESH:    4
SL_URL:          sw00904394000msufc0150.fits
SUN_POSTN:        55.81d {+03h 43m 14s}  +19.73d {+19d 43' 34"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.19d {+16h 08m 46s}  -17.37d {-17d 22' 29"}
MOON_DIST:       105.23 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_srclist.fits.gz file does not exist; skipping the attachment.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN Circular #24594
The Fermi GBM team reports the detection of a likely LONG GRB
At 07:24:57 UT on 19 May 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190519A (trigger 579943502.3431 / 190519309).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 114.9, Dec = -35.5 (J2000 degrees, equivalent to J2000 07h 39m, -35d 30'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 85.0 degrees.
The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_skymap_all_bn190519309.png
The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_healpix_all_bn190519309.fit
The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190519309/quicklook/glg_lc_medres34_bn190519309.gif

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:39:00 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
ROLL:            305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26889.87 SOD {07:28:09.87} UT,   150.4 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     579943712
X_OFFSET:        791 [pixels]
Y_OFFSET:        977 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       951
Y_GRB_POS:       1137
BINNING_INDEX:   1
IM_URL:          sw00904394000msuni0173.fits
SUN_POSTN:        55.81d {+03h 43m 14s}  +19.73d {+19d 43' 35"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.20d {+16h 08m 49s}  -17.38d {-17d 22' 40"}
MOON_DIST:       105.24 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [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).  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:39:11 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
ROLL:            305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  26889.87 SOD {07:28:09.87} UT,   150.4 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     579943712
X_OFFSET:        791 [pixels]
Y_OFFSET:        977 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       951
Y_GRB_POS:       1137
BINNING_INDEX:   1
IM_URL:          sw00904394000msuni0173.fits
SUN_POSTN:        55.81d {+03h 43m 14s}  +19.73d {+19d 43' 35"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.21d {+16h 08m 49s}  -17.38d {-17d 22' 41"}
MOON_DIST:       105.24 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [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.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:45:23 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
POINT_ROLL:      305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  27593.29 SOD {07:39:53.29} UT,   853.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.840
N_STARS:         190
X_OFFSET:        231 [pixels]
Y_OFFSET:        417 [pixels]
X_MAX:           1670 [pixels]
Y_MAX:           1856 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00904394000msufc0853.fits
SUN_POSTN:        55.81d {+03h 43m 15s}  +19.73d {+19d 43' 38"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.26d {+16h 09m 03s}  -17.39d {-17d 23' 33"}
MOON_DIST:       105.26 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:45:42 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
POINT_ROLL:      305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  27593.29 SOD {07:39:53.29} UT,   853.9 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        0.840
N_STARS:         190
X_OFFSET:        231 [pixels]
Y_OFFSET:        417 [pixels]
X_MAX:           1670 [pixels]
Y_MAX:           1856 [pixels]
DET_THRESH:      8
PHOTO_THRESH:    4
SL_URL:          sw00904394000msufc0853.fits
SUN_POSTN:        55.81d {+03h 43m 15s}  +19.73d {+19d 43' 38"}
SUN_DIST:         80.53 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.27d {+16h 09m 04s}  -17.39d {-17d 23' 36"}
MOON_DIST:       105.26 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:46:56 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
ROLL:            305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  27593.29 SOD {07:39:53.29} UT,   853.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     579944416
X_OFFSET:        790 [pixels]
Y_OFFSET:        976 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       950
Y_GRB_POS:       1136
BINNING_INDEX:   1
IM_URL:          sw00904394000msuni0876.fits
SUN_POSTN:        55.81d {+03h 43m 16s}  +19.73d {+19d 43' 39"}
SUN_DIST:         80.52 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.28d {+16h 09m 07s}  -17.40d {-17d 23' 46"}
MOON_DIST:       105.27 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [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).  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 19 May 19 07:47:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     904394,   Seg_Num: 0
POINT_RA:        114.751d {+07h 39m 00s} (J2000)
POINT_DEC:       -38.809d {-38d 48' 33"} (J2000)
ROLL:            305.109d
IMG_START_DATE:  18622 TJD;   139 DOY;   19/05/19
IMG_START_TIME:  27593.29 SOD {07:39:53.29} UT,   853.9 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     579944416
X_OFFSET:        790 [pixels]
Y_OFFSET:        976 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       950
Y_GRB_POS:       1136
BINNING_INDEX:   1
IM_URL:          sw00904394000msuni0876.fits
SUN_POSTN:        55.81d {+03h 43m 16s}  +19.73d {+19d 43' 39"}
SUN_DIST:         80.52 [deg]   Sun_angle= -3.9 [hr] (East of Sun)
MOON_POSTN:      242.28d {+16h 09m 08s}  -17.40d {-17d 23' 48"}
MOON_DIST:       105.27 [deg]
MOON_ILLUM:      100 [%]
GAL_COORDS:      252.54, -8.21 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      129.20,-58.93 [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.  
COMMENTS:        There is a bright star (mag=6.19) 6.54 arcmin from the BAT position.

GCN Circular #24595
T. N. Ukwatta (LANL), E. Ambrosi (INAF-IASFPA), V. D'Elia (SSDC), C. Gronwall (PSU), J. A. Kennea (PSU), A. Y. Lien (GSFC/UMBC) and K. L. Page (U Leicester) report on behalf of the Neil Gehrels Swift Observatory Team:
At 07:25:39 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 190519A (trigger=904394). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 114.764, -38.824 which is
```
   RA(J2000) = 07h 39m 03s
   Dec(J2000) = -38d 49' 26"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 20 sec. In addition, there might be a weaker pulse that starts at ~ T-50 s. The peak count rate was ~5500 counts/sec (15-350 keV), at ~0 sec after the trigger.
The XRT began observing the field at 07:27:04.3 UT, 85.0 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source with an enhanced position: RA, Dec 114.7673, -38.8052 which is equivalent to:
```
   RA(J2000)  = 07h 39m 04.14s
   Dec(J2000) = -38d 48' 18.7"
```
with an uncertainty of 2.0 arcseconds (radius, 90% containment). This location is 68 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper.
A power-law fit to a spectrum formed from promptly downlinked event data gives a column density in excess of the Galactic value (4.31 x 10^21 cm^-2, Willingale et al. 2013), with an excess column of 3.6 (+2.17/-1.96) x 10^21 cm^-2 (90% confidence).
The initial flux in the 2.5 s image was 4.35e-10 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 250 seconds with the U filter starting 150 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.2 mag. Results from the list of sources generated on-board are not available at this time. No correction has been made for the expected extinction corresponding to E(B-V) of 0.42.
Burst Advocate for this burst is T. N. Ukwatta (tilan.ukwatta AT gmail.com). 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/)
GCN Circular #24596
A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:
"At 07:24:57.34 UT on 19 May 2019, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GGRB 190519A (trigger 579943502 / 190519309), which was also detected by the Swift/BAT (Ukwatta et al. 2019, GCN 24595). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight at the GBM trigger time is 86.4 degrees.
The GBM light curve shows a multi-peaked structure with a duration (T90) of about 46 s (50-300 keV). The time-averaged spectrum from T0-3.072 s to T0+50.177 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -1.06 +/- 0.02 and the cutoff energy, parameterized as Epeak, is 112 +/- 3 keV
The event fluence (10-1000 keV) in this time interval is (3.16 +/- 0.04)E-05 erg/cm^2. The 1.024 sec peak photon flux measured starting from T0+41.9847 s in the 10-1000 keV band is 35.8 +/- 0.6 ph/s/cm^2.
A Band function fits the spectrum equally well with Epeak= 108 +/- 3 keV, alpha = -1.04 +/- 0.03 and beta = -3.1 +/- 0.3.
The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html
For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN Circular #24597
A.P. Beardmore, P.A. Evans, M.R. Goad and J.P. Osborne (U. Leicester) report on behalf of the Swift-XRT team.
Using 1496 s of XRT Photon Counting mode data and 2 UVOT images for GRB 190519A, 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 = 114.76757, -38.80540 which is equivalent to:
```
RA (J2000): 07h 39m 4.22s
Dec (J2000): -38d 48' 19.4"
```
with an uncertainty of 1.6 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 #24606
A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), H. A. Krimm (NSF), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), T. N. Ukwatta (LANL) (i.e. the Swift-BAT team):
Using the data set from T-239 to T+963 sec from the recent telemetry downlink, we report further analysis of BAT GRB 190519A (trigger #904394) (Ukwatta et al., GCN Circ. 24595). The BAT ground-calculated position is RA, Dec = 114.758, -38.813 deg which is
```
   RA(J2000)  =  07h 39m 01.9s
   Dec(J2000) = -38d 48' 46.6"
```
with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 8%.
The mask-weighted light curve shows a multi-peaked structure that starts at ~T-60 s and ends at ~T+15 s. The main peak occurs at ~T0. T90 (15-350 keV) is 45.58 +- 2.86 sec (estimated error including systematics).
The time-averaged spectrum from T-56.97 to T+14.79 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 1.32 +- 0.24, and Epeak of 90.0 +- 35.0 keV (chi squared 76.36 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 1.8 +- 0.1 x 10^-5 erg/cm2 and the 1-sec peak flux measured from T-0.21 sec in the 15-150 keV band is 20.6 +- 1.7 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.72 +- 0.06 (chi squared 85.04 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/904394/BA/
GCN Circular #24608
A. D'Ai (INAF-IASFPA), A. Melandri (INAF-OAB), P. D'Avanzo (INAF-OAB), D.N. Burrows (PSU), A. Tohuvavohu (PSU), S. J. LaPorte (PSU), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester) and T.N. Ukwatta report on behalf of the Swift-XRT team:
We have analysed 7.0 ks of XRT data for GRB 190519A (Ukwatta et al. GCN Circ. 24595), from 91 s to 46.8 ks after the BAT trigger. The data comprise 100 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Beardmore et al. (GCN Circ. 24597).
The late-time light curve (from T0+13.7 ks) can be modelled with a power-law decay with a decay index of alpha=1.33 (+/-0.28).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 2.34 (+0.20, -0.18). The best-fitting absorption column is 6.5 (+1.2, -1.1) x 10^21 cm^-2, in excess of the Galactic value of 4.3 x 10^21 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.79 (+0.13, -0.12) and a best-fitting absorption column of 6.8 (+1.1, -1.0) x 10^21 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.9 x 10^-11 (7.5 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     6.8 (+1.1, -1.0) x 10^21 cm^-2
Galactic foreground: 4.3 x 10^21 cm^-2
Excess significance: 4.3 sigma
Photon index:	     1.79 (+0.13, -0.12)
```
If the light curve continues to decay with a power-law decay index of 1.33, the count rate at T+24 hours will be 0.020 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.0 x 10^-12 (1.5 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/00904394.
This circular is an official product of the Swift-XRT team.
GCN Circular #24611
K. Yamaoka (Nagoya U), A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU), Y. Kawakubo (LSU), S. Nakahira (RIKEN), Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena), and the CALET collaboration:
The long bright GRB 190519A (Swift-BAT trigger #904394: Ukwatta et al., GCN Circ. 24595, Lien et al., GCN Circ. 24606; Fermi GBM observation: von Kienlin, GCN Circ. 24596) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 07:24:59.459 UTC on 19 May 2019. The burst signal was seen by all CGBM detectors.
The burst light curve shows a broad multi-peaked pulse which starts at T-4.0 sec and ends at ~T+24 sec, followed by a bright double-peaked pulse, which starts at T+31.8 sec, peaks at 40.1 sec and ends at T+45.3 sec. The T90 and T50 durations measured by the SGM data are 42.8 +- 2.5 sec and 24.6 +- 3.5 sec (40-1000 keV), respectively.
The ground processed light curve is available at
http://cgbm.calet.jp/cgbm_trigger/ground/1242285834/
The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.
GCN Circular #24612
J. D. Gropp (PSU) and T. N. Ukwatta (LANL) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 190519A 150 s after the BAT trigger (Ukwatta et al., GCN Circ. 24595). No optical afterglow consistent with the enhanced XRT position (Ukwatta et al. GCN Circ. 24597) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are:
```
Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

u_FC               150          400          246         >18.9
v                  456         2571          272         >18.7
b                  406         2520          272         >19.7
u                  150         2495          646         >19.5
w1                 505         2610          262         >19.5
m2                 481         2595          272         >19.1
w2                 432         2546          272         >19.2
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.42 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #24613
P. Ghumatkar, V. Sharma, T. Khanam, D. Bhattacharya and A. Vibhute (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
Analysis of AstroSat CZTI data showed the detection of a long GRB 190519A, which was also detected by Fermi GBM (GCN #24594).
The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple pulses of emission with the strongest peak at 07:25:43 UT. The measured peak count rate associated with the burst is 185 cts/s above the background in the combined data of four quadrants, with a total of 706 cts. The local mean background count rate was 622 cts/s. Using cumulative rates, we measure a T90 of 45.2 s. In preliminary analysis, we find that 429 Compton events are associated with this event.
It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.
CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
GCN Circular #24652
A. Tsvetkova, S. Golenetskii, R.Aptekar, D. Frederiks, M. Ulanov, D. Svinkin, A. Lysenko, A. Kozlova and T. Cline on behalf of the Konus-Wind team, report:
The long-duration GRB 190519A (Fermi GBM observation: Fermi GBM team, GCN 24594; von Kienlin, GCN 24596; Swift detection: Ukwatta et al., GCN 24595; Lien et al., GCN 24606; CALET Gamma-Ray Burst Monitor detection: Yamaoka et al., GCN 24611; AstroSat CZTI detection: Ghumatkar et al., GCN 24613) triggered Konus-Wind at T0=26732.082 s UT (07:25:32.082).
The burst light curve shows two pulses. The first one starts at T0-39.0 s and ends at T0-3.7 s. The second, bright, double-peaked pulse starts at T0-3.7 s and ends at T0+11.6 s. The total duration of the burst is ~51 s. The emission is seen up to ~1.5 MeV.
As observed by Konus-Wind, the burst had a fluence of 3.20(-0.16,+0.18)x10^-5 erg/cm2, and a 64-ms peak energy flux, measured from T0+6.752 s, of 5.80(-1.01,+1.01)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-integrated spectrum of the main pulse (measured from T0 to T0+15.616 s) is best fit in the 20 keV - 1.5 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with� alpha = -1.05(-0.09,+0.10), and Ep = 125(-6,+7) keV (chi2 = 67/60 dof). Fitting by the GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -3.05 (chi2 = 67/59 dof).
The spectrum near the peak count rate (measured from T0+0.256 to T0+7.424 s) is best fit in the 20 keV - 1.5 MeV range by the power law with exponential cutoff model with� alpha = -0.93(-0.10,+0.10), and Ep = 136(-6,+7) keV (chi2 = 65/60 dof). Fitting by the GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.96 (chi2 = 64/59 dof).
Modeling the K-W 3-channel spectrum of the initial pulse (measured from T0-38.980 s to T0-3.652 s) by a simple power law yields the photon index of 2.21(-0.07,+0.08), chi2 = 0.94/1 dof.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB190519_T26732/
All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.

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Jochen Greiner, last update: 22-May-2019 [Disclaimer]