Gamma-ray Burst 200219A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:42:56 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     957271,   Seg_Num: 0
GRB_RA:          342.644d {+22h 50m 35s} (J2000),
                 342.958d {+22h 51m 50s} (current),
                 341.861d {+22h 47m 27s} (1950)
GRB_DEC:         -59.108d {-59d 06' 29"} (J2000),
                 -59.001d {-59d 00' 03"} (current),
                 -59.373d {-59d 22' 23"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       2946 [cnts]    Image_Peak=283 [image_cnts]
TRIGGER_DUR:     0.256 [sec] 
TRIGGER_INDEX:   126     E_range: 50-350 keV
BKG_INTEN:       17925 [cnts]
BKG_TIME:        27399.53 SOD {07:36:39.53} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18898 TJD;    50 DOY;   20/02/19
GRB_TIME:        27409.13 SOD {07:36:49.13} UT
GRB_PHI:          -0.89 [deg]
GRB_THETA:        17.50 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     97.43 [sigma]
IMAGE_SIGNIF:    13.23 [sigma]
MERIT_PARAMS:     +1  +0  +0  -2  +3  +2  +0  +0 -66  +0 
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 41"}
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.12d {+18h 48m 29s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.25 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.64,-51.83 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      315.48,-46.59 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This Notice was delayed by more than 60 sec past the end of the trigger integration interval;  
COMMENTS:        probably due to it occurring during a Malindi downlink session.  
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 = 16.39,13.98 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=603790614).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:37:13 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      48
TRIGGER_NUM:     603790614
GRB_RA:          343.617d {+22h 54m 28s} (J2000),
                 343.925d {+22h 55m 42s} (current),
                 342.847d {+22h 51m 23s} (1950)
GRB_DEC:         -58.033d {-58d 01' 59"} (J2000),
                 -57.926d {-57d 55' 31"} (current),
                 -58.300d {-58d 17' 59"} (1950)
GRB_ERROR:       7.80 [deg radius, statistical plus systematic]
GRB_INTEN:       1162 [cnts/sec]
DATA_SIGNIF:     25.60 [sigma]
INTEG_TIME:      0.256 [sec]
GRB_DATE:        18898 TJD;    50 DOY;   20/02/19
GRB_TIME:        27409.10 SOD {07:36:49.10} UT
GRB_PHI:         353.00 [deg]
GRB_THETA:        50.00 [deg]
DATA_TIME_SCALE: 0.2560 [sec]
HARD_RATIO:      0.29
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      96%  GRB
2nd_MOST_LIKELY:   1%  Generic Transient
DETECTORS:       0,0,0, 1,1,1, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       332.20d {+22h 08m 48s}  -11.43d {-11d 25' 46"}
SUN_DIST:         47.35 [deg]   Sun_angle= -0.8 [hr] (East of Sun)
MOON_POSTN:      282.06d {+18h 48m 15s}  -23.33d {-23d 19' 58"}
MOON_DIST:        55.56 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      328.34,-52.94 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      316.95,-45.97 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_lc_medres34_bn200219317.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 221.48,-23.70 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:37:29 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      59
TRIGGER_NUM:     603790614
GRB_RA:          346.730d {+23h 06m 55s} (J2000),
                 347.030d {+23h 08m 07s} (current),
                 345.980d {+23h 03m 55s} (1950)
GRB_DEC:         -58.870d {-58d 52' 11"} (J2000),
                 -58.761d {-58d 45' 38"} (current),
                 -59.141d {-59d 08' 25"} (1950)
GRB_ERROR:       2.53 [deg radius, statistical only]
DATA_SIGNIF:     26.90 [sigma]
DATA_INTERVAL:   0.256 [sec]
GRB_DATE:        18898 TJD;    50 DOY;   20/02/19
GRB_TIME:        27409.10 SOD {07:36:49.10} UT
GRB_PHI:         351.00 [deg]
GRB_THETA:        49.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4173 (Gnd S/W Version number)
SUN_POSTN:       332.20d {+22h 08m 48s}  -11.43d {-11d 25' 45"}
SUN_DIST:         48.64 [deg]   Sun_angle= -1.0 [hr] (East of Sun)
MOON_POSTN:      282.07d {+18h 48m 16s}  -23.33d {-23d 19' 58"}
MOON_DIST:        57.30 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      325.41,-53.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      318.23,-47.57 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_lc_medres34_bn200219317.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_603790614.fits
COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
COMMENTS:        In the LAT Field-of-view.  
COMMENTS:        Bright hard burst in the GBM.  
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:     Wed 19 Feb 20 07:46:13 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     603790614
GRB_RA:          344.080d {+22h 56m 19s} (J2000),
                 344.391d {+22h 57m 34s} (current),
                 343.303d {+22h 53m 13s} (1950)
GRB_DEC:         -60.000d {-60d 00' 00"} (J2000),
                 -59.892d {-59d 53' 31"} (current),
                 -60.267d {-60d 16' 01"} (1950)
GRB_ERROR:       13.92 [deg radius, statistical only]
GRB_DATE:        18898 TJD;    50 DOY;   20/02/19
GRB_TIME:        27409.10 SOD {07:36:49.10} UT
GRB_PHI:         353.00 [deg]
GRB_THETA:        48.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:       332.21d {+22h 08m 49s}  -11.43d {-11d 25' 38"}
SUN_DIST:         49.31 [deg]   Sun_angle= -0.8 [hr] (East of Sun)
MOON_POSTN:      282.15d {+18h 48m 36s}  -23.33d {-23d 20' 00"}
MOON_DIST:        56.14 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      325.79,-51.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      315.63,-47.73 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_lc_medres34_bn200219317.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_locplot_all_bn200219317.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:        In the LAT Field-of-view.  
COMMENTS:        This is likely a Short GRB.  
COMMENTS:           
COMMENTS:        NOTE: This GBM event is temporally(0.0<100sec) coincident with the SWIFT_BAT event (trignum=957271).

GCN NOTICE

 
TITLE:           GCN/SWIFT NOTICE 
NOTICE_DATE:     Wed 19 Feb 20 07:44:14 UT 
NOTICE_TYPE:     Swift-BAT GRB Lightcurve 
TRIGGER_NUM:     957271,   Seg_Num: 0 
GRB_RA:          342.644d {+22h 50m 35s} (J2000), 
                 342.958d {+22h 51m 50s} (current), 
                 341.861d {+22h 47m 27s} (1950) 
GRB_DEC:         -59.108d {-59d 06' 29"} (J2000), 
                 -59.001d {-59d 00' 03"} (current), 
                 -59.373d {-59d 22' 23"} (1950) 
GRB_DATE:        18898 TJD;    50 DOY;   20/02/19 
GRB_TIME:        27409.13 SOD {07:36:49.13} UT 
TRIGGER_INDEX:   126 
GRB_PHI:          -0.89 [deg] 
GRB_THETA:        17.50 [deg] 
DELTA_TIME:      0.00 [sec] 
TRIGGER_DUR:     0.256 [sec]  
SOLN_STATUS:     0x3 
RATE_SIGNIF:     97.43 [sigma] 
IMAGE_SIGNIF:    13.23 [sigma] 
LC_URL:          sw00957271000msb.lc 
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 39"} 
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun) 
MOON_POSTN:      282.13d {+18h 48m 32s}  -23.33d {-23d 20' 00"} 
MOON_DIST:        55.25 [deg] 
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.64,-51.83 [deg] galactic lon,lat of the burst (or transient) 
ECL_COORDS:      315.48,-46.59 [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 = 16.39,13.98 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:43:42 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     957271,   Seg_Num: 0
GRB_RA:          342.6350d {+22h 50m 32.3s} (J2000),
                 342.9483d {+22h 51m 47.5s} (current),
                 341.8518d {+22h 47m 24.4s} (1950)
GRB_DEC:         -59.1206d {-59d 07' 14.1"} (J2000),
                 -59.0135d {-59d 00' 48.6"} (current),
                 -59.3857d {-59d 23' 08.6"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       117 [cnts]
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27476.63 SOD {07:37:56.63} UT,   67.5 [sec] since BAT Trigger Time
CENTROID_X:      331.76,  raw= 332  [pixels]
CENTROID_Y:      305.33,  raw= 305  [pixels]
ROLL:            346.25 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   17.04
GRB_POS_XRT_Z:   57.43
IMAGE_URL:       sw00957271000msxps_rw.img
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 40"}
SUN_DIST:         48.27 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.13d {+18h 48m 30s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.25 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.64,-51.82 [deg] galactic lon,lat of the burst
ECL_COORDS:      315.47,-46.59 [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:     Wed 19 Feb 20 07:44:54 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.637d {+22h 50m 33s} (J2000)
POINT_DEC:       -59.104d {-59d 06' 12"} (J2000)
POINT_ROLL:      346.247d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27484.07 SOD {07:38:04.07} UT,   74.9 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        5.558
N_STARS:         28
X_OFFSET:        456 [pixels]
Y_OFFSET:        600 [pixels]
X_MAX:           1415 [pixels]
Y_MAX:           1559 [pixels]
DET_THRESH:      20
PHOTO_THRESH:    12
SL_URL:          sw00957271000msufc0074.fits
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 39"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.14d {+18h 48m 33s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.24 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:45:06 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.637d {+22h 50m 33s} (J2000)
POINT_DEC:       -59.104d {-59d 06' 12"} (J2000)
POINT_ROLL:      346.247d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27484.07 SOD {07:38:04.07} UT,   74.9 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        5.558
N_STARS:         28
X_OFFSET:        456 [pixels]
Y_OFFSET:        600 [pixels]
X_MAX:           1415 [pixels]
Y_MAX:           1559 [pixels]
DET_THRESH:      20
PHOTO_THRESH:    12
SL_URL:          sw00957271000msufc0074.fits
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 39"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.14d {+18h 48m 34s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.24 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 07:43:42 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     957271,   Seg_Num: 0
GRB_RA:          342.6350d {+22h 50m 32.3s} (J2000),
                 342.9483d {+22h 51m 47.5s} (current),
                 341.8518d {+22h 47m 24.4s} (1950)
GRB_DEC:         -59.1206d {-59d 07' 14.1"} (J2000),
                 -59.0135d {-59d 00' 48.6"} (current),
                 -59.3857d {-59d 23' 08.6"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       117 [cnts]
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27476.63 SOD {07:37:56.63} UT,   67.5 [sec] since BAT Trigger Time
CENTROID_X:      331.76,  raw= 332  [pixels]
CENTROID_Y:      305.33,  raw= 305  [pixels]
ROLL:            346.25 [deg]
GAIN:            2
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   17.04
GRB_POS_XRT_Z:   57.43
IMAGE_URL:       sw00957271000msxps_rw.img
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 40"}
SUN_DIST:         48.27 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.13d {+18h 48m 30s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.25 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.64,-51.82 [deg] galactic lon,lat of the burst
ECL_COORDS:      315.47,-46.59 [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:     Wed 19 Feb 20 07:43:32 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     957271,   Seg_Num: 0
GRB_RA:          342.6350d {+22h 50m 32.39s} (J2000),
                 342.9483d {+22h 51m 47.59s} (current),
                 341.8518d {+22h 47m 24.42s} (1950)
GRB_DEC:         -59.1206d {-59d 07' 14.1"} (J2000),
                 -59.0135d {-59d 00' 48.6"} (current),
                 -59.3857d {-59d 23' 08.6"} (1950)
GRB_ERROR:       4.9 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       4.22e-09 [erg/cm2/sec]
GRB_SIGNIF:      10.81 [sigma]
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27476.63 SOD {07:37:56.63} UT,   67.5 [sec] since BAT Trigger Time
TAM[0-3]:        327.67 237.20 261.70 243.24
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       332.20d {+22h 08m 49s}  -11.43d {-11d 25' 40"}
SUN_DIST:         48.27 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.12d {+18h 48m 30s}  -23.33d {-23d 20' 00"}
MOON_DIST:        55.25 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.64,-51.82 [deg] galactic lon,lat of the burst
ECL_COORDS:      315.47,-46.59 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        The XRT position is 0.79 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:     Wed 19 Feb 20 07:47:02 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.637d {+22h 50m 33s} (J2000)
POINT_DEC:       -59.104d {-59d 06' 12"} (J2000)
ROLL:            346.247d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27484.07 SOD {07:38:04.07} UT,   74.9 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603790708
X_OFFSET:        685 [pixels]
Y_OFFSET:        911 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       845
Y_GRB_POS:       1071
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0099.fits
SUN_POSTN:       332.21d {+22h 08m 50s}  -11.43d {-11d 25' 37"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.16d {+18h 48m 38s}  -23.33d {-23d 20' 01"}
MOON_DIST:        55.23 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 07:47:18 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.637d {+22h 50m 33s} (J2000)
POINT_DEC:       -59.104d {-59d 06' 12"} (J2000)
ROLL:            346.247d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27484.07 SOD {07:38:04.07} UT,   74.9 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603790708
X_OFFSET:        685 [pixels]
Y_OFFSET:        911 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       845
Y_GRB_POS:       1071
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0099.fits
SUN_POSTN:       332.21d {+22h 08m 50s}  -11.43d {-11d 25' 37"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.16d {+18h 48m 39s}  -23.33d {-23d 20' 01"}
MOON_DIST:        55.23 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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 #27123
The Fermi GBM team reports the detection of a likely SHORT GRB
At 07:36:49 UT on 19 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200219A (trigger 603790614.095852 / 200219317).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 344.1, Dec = -60.0 (J2000 degrees, equivalent to J2000 22h 56m, -60d 00'), with a statistical uncertainty of 13.9 degrees.
The angle from the Fermi LAT boresight is 48.0 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_skymap_all_bn200219317.png
The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_healpix_all_bn200219317.fit
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200219317/quicklook/glg_lc_medres34_bn200219317.gif

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:52:57 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.633d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 15"} (J2000)
POINT_ROLL:      346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27696.35 SOD {07:41:36.35} UT,   287.2 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.629
N_STARS:         24
X_OFFSET:        365 [pixels]
Y_OFFSET:        591 [pixels]
X_MAX:           1324 [pixels]
Y_MAX:           1550 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00957271000msufc0287.fits
SUN_POSTN:       332.21d {+22h 08m 50s}  -11.43d {-11d 25' 32"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.22d {+18h 48m 52s}  -23.33d {-23d 20' 02"}
MOON_DIST:        55.20 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.66,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 07:53:05 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.633d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 15"} (J2000)
POINT_ROLL:      346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27696.35 SOD {07:41:36.35} UT,   287.2 [sec] since BAT Trigger Time
FILTER:          7, U
BKG_MEAN:        1.629
N_STARS:         24
X_OFFSET:        365 [pixels]
Y_OFFSET:        591 [pixels]
X_MAX:           1324 [pixels]
Y_MAX:           1550 [pixels]
DET_THRESH:      11
PHOTO_THRESH:    5
SL_URL:          sw00957271000msufc0287.fits
SUN_POSTN:       332.21d {+22h 08m 50s}  -11.43d {-11d 25' 32"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.22d {+18h 48m 52s}  -23.33d {-23d 20' 02"}
MOON_DIST:        55.20 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.66,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 07:54:32 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.633d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 15"} (J2000)
ROLL:            346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27696.35 SOD {07:41:36.35} UT,   287.2 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     603790920
X_OFFSET:        685 [pixels]
Y_OFFSET:        911 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       845
Y_GRB_POS:       1071
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0312.fits
SUN_POSTN:       332.21d {+22h 08m 51s}  -11.43d {-11d 25' 30"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.23d {+18h 48m 55s}  -23.33d {-23d 20' 03"}
MOON_DIST:        55.19 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.66,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 07:54:41 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.633d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 15"} (J2000)
ROLL:            346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27696.35 SOD {07:41:36.35} UT,   287.2 [sec] since BAT Trigger Time
FILTER:          7, U
EXPOSURE_ID:     603790920
X_OFFSET:        685 [pixels]
Y_OFFSET:        911 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       845
Y_GRB_POS:       1071
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0312.fits
SUN_POSTN:       332.21d {+22h 08m 51s}  -11.43d {-11d 25' 30"}
SUN_DIST:         48.25 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.23d {+18h 48m 56s}  -23.33d {-23d 20' 03"}
MOON_DIST:        55.19 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.66,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 07:53:34 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     957271,   Seg_Num: 0
GRB_RA:          342.6376d {+22h 50m 33.02s} (J2000),
                 342.9509d {+22h 51m 48.21s} (current),
                 341.8544d {+22h 47m 25.05s} (1950)
GRB_DEC:         -59.1199d {-59d 07' 11.6"} (J2000),
                 -59.0128d {-59d 00' 46.1"} (current),
                 -59.3850d {-59d 23' 06.1"} (1950)
GRB_ERROR:       2.5 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  27649.00 SOD {07:40:49.00} UT,   239.9 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       332.21d {+22h 08m 51s}  -11.43d {-11d 25' 31"}
SUN_DIST:         48.27 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.22d {+18h 48m 53s}  -23.33d {-23d 20' 02"}
MOON_DIST:        55.20 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.63,-51.82 [deg] galactic lon,lat of the burst
ECL_COORDS:      315.47,-46.59 [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:     Wed 19 Feb 20 08:00:25 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.634d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 16"} (J2000)
POINT_ROLL:      346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  28275.14 SOD {07:51:15.14} UT,   866.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.108
N_STARS:         190
X_OFFSET:        125 [pixels]
Y_OFFSET:        351 [pixels]
X_MAX:           1564 [pixels]
Y_MAX:           1790 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    9
SL_URL:          sw00957271000msufc0866.fits
SUN_POSTN:       332.22d {+22h 08m 52s}  -11.42d {-11d 25' 25"}
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.29d {+18h 49m 09s}  -23.33d {-23d 20' 04"}
MOON_DIST:        55.16 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 08:00:46 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.634d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 16"} (J2000)
POINT_ROLL:      346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  28275.14 SOD {07:51:15.14} UT,   866.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.108
N_STARS:         190
X_OFFSET:        125 [pixels]
Y_OFFSET:        351 [pixels]
X_MAX:           1564 [pixels]
Y_MAX:           1790 [pixels]
DET_THRESH:      17
PHOTO_THRESH:    9
SL_URL:          sw00957271000msufc0866.fits
SUN_POSTN:       332.22d {+22h 08m 52s}  -11.42d {-11d 25' 25"}
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.29d {+18h 49m 10s}  -23.33d {-23d 20' 04"}
MOON_DIST:        55.16 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN Circular #27124
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA),
H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias),
D. Buckley (South African Astronomical Observatory),
O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University)
MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) was pointed to the Swift GRB200219.32 (trigger No 957271,22h 50m 34.56s , -59d 06m 28.8s, R=0.05) errorbox 74 sec after trigger time at 2020-02-19 07:38:03 UT, with upper limit up to 16.5 mag. The observations began at zenith distance = 87 deg. The sun altitude is -31.2 deg.
The galactic latitude b = -52 deg., longitude l = 328 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1292468
We obtain a following upper limits.
```
Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      79 |         MASTER-OAFA |   C |    10 | 14.2 |        
     125 |         MASTER-OAFA |   C |    20 | 15.2 |        
     188 |         MASTER-OAFA |   C |    30 | 15.1 |        
     263 |         MASTER-OAFA |   C |    50 | 15.8 |        
     439 |         MASTER-OAFA |   C |    80 | 16.5 |        
     567 |         MASTER-OAFA |   C |   100 | 16.1 |        
```
Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.
GCN Circular #27125
A. Y. Lien (GSFC/UMBC), E. Ambrosi (INAF-IASFPA), A. D'Ai (INAF-IASFPA), J. A. Kennea (PSU), N. J. Klingler (PSU), K. L. Page (U Leicester) and D. M. Palmer (LANL) report on behalf of the Neil Gehrels Swift Observatory Team:
At 07:36:49 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 200219A (trigger=957271). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 342.644, -59.108 which is
```
   RA(J2000) = 22h 50m 35s
   Dec(J2000) = -59d 06' 29"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single peak with a duration of about 1 sec. The peak count rate was ~15000 counts/sec (15-350 keV), at ~0.3 sec after the trigger.
The XRT began observing the field at 07:37:56.6 UT, 67.5 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 342.6376, -59.1200 which is equivalent to:
```
   RA(J2000)  = 22h 50m 33.02s
   Dec(J2000) = -59d 07' 11.8"
```
with an uncertainty of 2.5 arcseconds (radius, 90% containment). This location is 44 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 https://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 (1.93 x 10^20 cm^-2, Willingale et al. 2013), with an excess column of 6.1 (+3.05/-2.63) x 10^21 cm^-2 (90% confidence).
The initial flux in the 2.5 s image was 4.22e-09 erg cm^-2 s^-1 (0.2-10 keV).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 74 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 19.6 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.02.
Burst Advocate for this burst is A. Y. Lien (amy.y.lien AT 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/)

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Wed 19 Feb 20 08:02:00 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.634d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 16"} (J2000)
ROLL:            346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  28275.14 SOD {07:51:15.14} UT,   866.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603791499
X_OFFSET:        684 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       844
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0891.fits
SUN_POSTN:       332.22d {+22h 08m 52s}  -11.42d {-11d 25' 24"}
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.30d {+18h 49m 12s}  -23.33d {-23d 20' 04"}
MOON_DIST:        55.15 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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:     Wed 19 Feb 20 08:02:09 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     957271,   Seg_Num: 0
POINT_RA:        342.634d {+22h 50m 32s} (J2000)
POINT_DEC:       -59.105d {-59d 06' 16"} (J2000)
ROLL:            346.251d
IMG_START_DATE:  18898 TJD;    50 DOY;   20/02/19
IMG_START_TIME:  28275.14 SOD {07:51:15.14} UT,   866.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603791499
X_OFFSET:        684 [pixels]
Y_OFFSET:        910 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       844
Y_GRB_POS:       1070
BINNING_INDEX:   1
IM_URL:          sw00957271000msuni0891.fits
SUN_POSTN:       332.22d {+22h 08m 52s}  -11.42d {-11d 25' 24"}
SUN_DIST:         48.26 [deg]   Sun_angle= -0.7 [hr] (East of Sun)
MOON_POSTN:      282.30d {+18h 49m 13s}  -23.33d {-23d 20' 04"}
MOON_DIST:        55.15 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      327.65,-51.83 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      315.48,-46.58 [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 #27126
N.Tiurina, V. Lipunov, E. Gorbovskoy, V.Kornilov, P.Balanutsa,A.Kuznetsov, V. Vladimirov, O.Gress, D. Vlasenko, F.Balakin, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D. Kuvshinov, V.Shumkov (Lomonosov Moscow State University, SAI, Physics Department),
R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),
R. Podesta, C.Lopez, F. Podesta, C.Francile(Observatorio Astronomico Felix Aguilar OAFA),
H. Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),
V. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State University)
MASTER Global Robotic Net Catalog System (http://observ.pereplet.ru, Lipunov et al., 2010,Advances in Astronomy,v. 2010, 30L) reducted GRB 200219A (Lien et al. GCN 27125, Lipunov et al GCN 27124) XRT error box.
It found possible Host Galaxy in 1 sec from XRT center error box:
The Guide Star Catalog, WISE All-Sky Data Release (Cutri+2012) AllWISE Data Release (Cutri+ 2013), The VISTA Hemisphere Survey (VHS) catalog DR4.1 (McMahon+, 2013)
RA,DEC (AllWISE) coordinates 22 50 33.023904 -59 07 10.83396
This message can be used.
GCN Circular #27137
E. Bissaldi (Politecnico and INFN Bari) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:
"At 07:36:49.10 UT on 19 February 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 200219A (trigger 603790614/200219317), which was also detected by the Swift/BAT (Lien et al. 2020, GCN 27125). The GBM on-ground location is consistent with the Swift position.
The angle from the Fermi LAT boresight at the GBM trigger time is 49 degrees.
The GBM light curve consists of a single emission episode with a duration (T90) of about 1.1 s (50-300 keV). The time-averaged spectrum from T0-0.064 s to T0+0.448 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -0.60 +/- 0.06 and the cutoff energy, parameterized as Epeak, is 1.4 +/- 0.2 MeV.
The event fluence (10-1000 keV) in this time interval is (2.8 +/- 0.1)E-06 erg/cm^2. The 64-ms peak photon flux measured starting from T0+0.192 s in the 10-1000 keV band is 16.1 +/- 1.1 ph/s/cm^2.
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 #27138
J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team.
Using 1921 s of XRT Photon Counting mode data and 1 UVOT images for GRB 200219A, 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 = 342.63837, -59.11954 which is equivalent to:
```
RA (J2000): 22h 50m 33.21s
Dec (J2000): -59d 07' 10.4"
```
with an uncertainty of 1.8 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 #27139
V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), A. Tohuvavohu (U. Toronto), B. Sbarufatti (PSU), D.N. Burrows (PSU), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB) and A.Y. Lien report on behalf of the Swift-XRT team:
We have analysed 6.7 ks of XRT data for GRB 200219A (Lien et al. GCN Circ. 27125), from 57 s to 13.6 ks after the BAT trigger. The data comprise 28 s in Windowed Timing (WT) mode (the first 8 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 Osborne et al. (GCN Circ. 27138). We cannot determine at the present time whether the source is fading.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00957271.
This circular is an official product of the Swift-XRT team.
GCN Circular #27142
A. D'Ai (INAF-IASFPA), B. Sbarufatti (PSU), D.N. Burrows (PSU), J. D. Gropp (PSU), J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A. Melandri (INAF-OAB), T. Sbarrato (INAF-OAB) and A. Y. Lien (GSFC/UMBC) report on behalf of the Swift-XRT team:
We have analysed 9.8 ks of XRT data for GRB 200219A (Lien et al. GCN Circ. 27125), from 57 s to 24.9 ks after the BAT trigger. The data comprise 165 s in Windowed Timing (WT) mode (the first 8 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 Osborne et al. (GCN Circ. 27138).
The light curve can be modelled with a series of power-law decays. The initial decay index is alpha=1.10 (+/-0.16). At T+136 s the decay steepens to an alpha of 4.7 (+3.3, -0.4) before breaking again at T+444 s to a final decay with index alpha=1.2 (+0.4, -0.6).
A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.36 (+/-0.06). The best-fitting absorption column is 1.26 (+0.26, -0.24) x 10^21 cm^-2, in excess of the Galactic value of 1.9 x 10^20 cm^-2 (Willingale et al. 2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 4.9 x 10^-11 (5.4 x 10^-11) erg cm^-2 count^-1.
A summary of the WT-mode spectrum is thus:
```
Total column:	     1.26 (+0.26, -0.24) x 10^21 cm^-2
Galactic foreground: 1.9 x 10^20 cm^-2
Excess significance: 7.2 sigma
Photon index:	     1.36 (+/-0.06)
```
If the light curve continues to decay with a power-law decay index of 1.2, the count rate at T+24 hours will be 2.1 x 10^-4 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.0 x 10^-14 (1.1 x 10^-14) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00957271.
Due to data delivery problems, the GCN Circ. 27139 (D'Elia et al.) was sent while the analysis was still running, which is why it was incomplete.
This circular is an official product of the Swift-XRT team.
GCN Circular #27148
S. Laha (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (CPI), H. A. Krimm (NSF), A. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), J. P. Norris (BSU), 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-240 to T+962 sec from the recent telemetry downlink, we report further analysis of BAT GRB 200219A (trigger #957271) (Lien et al., GCN Circ. 27125). The BAT ground-calculated position is RA, Dec = 342.595, -59.101 deg which is
```
   RA(J2000)  =  22h 50m 22.7s
   Dec(J2000) = -59d 06' 04.5"
```
with an uncertainty of 2.4 arcmin, (radius, sys+stat, 90% containment). The partial coding was 99%.
The mask-weighted light curve shows a short pulse that starts and peaks at ~T0, and ends at ~T+0.5 s. It is followed by an extended emission that lasting until ~T+90 s. In addition, there may be some even weaker emission until ~T+300 s. T90 (15-350 keV) is 288.0 +- 50.6 sec (estimated error including systematics).
The time-averaged spectrum from T-0.2 to T+86.7 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.47 +- 0.25. The fluence in the 15-150 keV band is 7.4 +- 1.1 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T-0.268 sec in the 15-150 keV band is 2.4 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
Because the burst seems to be similar to short GRBs with extended emission, we perform further spectral analysis for the short pulse and the extended emission. The short pulse from T-0.224 s to T+0.496 s (determined by the Bayesian block analysis) is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 0.69 +- 0.14. The fluence in the 15-150 keV band is 2.5 +- 0.2 x 10^-7 erg/cm2. The extended emission from T+0.496 s to T+86.704 s is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.78 +- 0.33. The fluence in the 15-150 keV band is 4.9 +- 1.0 x 10^-7 erg/cm2.
The spectral lag of the short pulse is 14 (+5, -5) ms for the 100-350 keV to 25-50 keV bands, and 20 (+15, -10) ms for the 50-100 keV to 15-25 keV bands. These values are more consistent with those of long GRBs.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/957271/BA/
GCN Circular #27164
Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ), Martin Masek, Petr Janecek, Sergey Karpov, Jakub Jurysek, Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza (Institute of Physics, Prague, CZ)
report:
The 30cm robotic telescope FRAM-Auger in Malargue (Argentina) reacted robotically to the Swift/BAT alert of GRB200219A (Lien et al., GCNC 27125, D'Elia et al., GCNC 27139, and Bissaldi et al., GCNC 27137), starting with a series of 20s unfiltered images at 07:43:16 UT, i.e. 6.45 min post trigger.
We do not detect any new or strongly variable source at or around the reported gamma-ray errorbox at single frames or a combined 20 x 20s image taken between 6.45 min and 15.39 min after the initial trigger. The combined exposure has a limiting magnitude r'(AB) = 18.9, as calibrated against the APASS Catalogue.
GCN Circular #27165
M. H. Siegel (PSU) and A. Y. Lien (GSFC/UMBC) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 200219A 75 s after the BAT trigger (Lien et al., GCN Circ. 27125). No optical afterglow consistent with the XRT position (Osborne et al. GCN Circ. 27138) 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

white_FC            75          225          147         >20.2
u_FC               287          537          246         >19.3
white               75        19365         1139         >21.2
v                  617        30839         1770         >19.7
b                  543        36572         2257         >20.9
u                  287        25105         2431         >20.7
w1                 666        40797         1248         >20.4
m2                 641        40734         2104         >20.4
w2                 592        28878          914         >20.2
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.02 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #27218
T. Sakamoto (AGU), E. Troja (NASA/GSFC/ORAU), J. Norris (BSU), S. D. Barthelmy (GSFC), J. L. Racusin (GSFC), N. Kawai (Tokyo Tech), A. Fruchter (STScI), M. Im (SNU)
A Chandra ToO observation of GRB 200219A (Lien et al., GCN Circ. 27125; Bissaldi et al., GCN Circ. 27137) started on February 23 16:32 UT (~4.4 days after the GRB trigger) for a total of 19.2 ksec.
We do not detect an X-ray afterglow at the location of the enhanced XRT position (Osborne et al., GCN Circ. 27138). The calculated 3-sigma upper limit is 3.3e-4 c/s in the 0.35-8 keV band using aprates of the CIAO software package. Using the best fit spectral parameters of the XRT PC mode data, we estimated an 3-sigma unabsorbed flux upper limit of 5.0e-15 erg/cm2/s in the 0.35-8 keV band.
We would like to thank the Chandra operation team for rapidly approving and making this observation.
GCN Circular #27226
D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, M. Ulanov, A. Tsvetkova, A. Lysenko, A. Ridnaia, and T. Cline on behalf of the Konus-Wind team, report:
The short-duration GRB 200219A (Fermi-GBM detection: The Fermi GBM team, GCN Circ. 27123; Bissaldi and Meegan, GCN Circ. 27137; Swift-BAT detection: Lien et al., GCN Circ. 27125; Laha et al., GCN Circ. 27148) triggered Konus-Wind at T0=27405.513 s UT (07:36:45.513).
The burst light curve shows a single multi-peaked pulse which starts at ~T0-0.2 s and has a total duration of ~0.4 s. The emission is seen up to ~8 MeV.
The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB200219_T27405/
As observed by Konus-Wind, the burst had a fluence of 4.12(-0.61,+0.67)x10^-6 erg/cm2, and a 16-ms peak flux, measured from T0+0.182 s, of 2.34(-0.73,+0.76)x10^-5 erg/cm2/s (both in the 20 keV - 10 MeV energy range).
The time-averaged spectrum of the burst (measured from T0 to T0+0.256 s) is best fit in the 20 keV - 8 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.06(-0.28,+0.35) and Ep = 952(-173,+218) keV (chi2 = 29/27 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 = 29/26 dof).
All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.
GCN Circular #27245
D. d遯ｶ蜒穫tonio (UTS), M. E. Bell (UTS), G. E. Anderson (Curtin), J. Stevens (CASS), P. J. Hancock (Curtin), J. C. A. Miller-Jones (Curtin), M. D. Aksulu (UvA), A. Bahramian (Curtin), K. W. Bannister (CASS), A. J, van der Horst (GWU), S. D. Ryder (Macquarie), J-P. Macquart (Curtin), R. M. Plotkin (UNR), A. Rowlinson (UvA), R. A. M. J. Wijers (UvA)
We used the Australia Telescope Compact Array (ATCA) to perform a radio observation of the short GRB 200219A. The scheduled observations began on 2020 Feb 22.8 UT for 7.5 hours (3.5 days post-burst; Fermi GBM Team GCN 27123, A. Y. Lien et al., GCN 27125). No radio source was detected at the XRT position (J.P. Osborne et al., GCN 27138), with preliminary 3 sigma upper-limits of 53 microJy and 57 microJy at 5.5 and 9 GHz, respectively.
We thank the ATCA and CSIRO Astronomy and Space Science (CASS) staff for scheduling these observations.
GCN Circular #27305
S. Gupta, V. Sharma and D. Bhattacharya (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 the short GRB 200219A, which was also detected by Fermi GBM Final Real-time (GCN #27123), Swift (Lien A. et al., GCN #27125), MASTER (Tiurina N. et al., GCN #27126), Swift-BAT (Laha S. et al., GCN #27148), FRAM-Auger (Jelinek M. et al., GCN #27164), UVOT (Siegel M. et al., GCN #27165), Konus-Wind (Svinkin D. et al., GCN #27226) and ATCA 5/9 GHz (Antonio D. et al., GCN #27245). The source was clearly detected in the 40-200 keV energy range. The light curve showed a single peak of emission peaking at 2020-02-19 07:36:49 UT. The measured peak count rate associated with the burst is 426 +/- 30.7 cts/s above the background in the combined data of four quadrants, with a total of 413 +/- 4.4 cts. The local mean background count rate was 489 +/- 2.2 cts/s. Using cumulative rates, we measure a T90 of 1.1 +/- 0.45 s. 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.
photometric redshift z = 0.48 +- 0.02
of host-galaxy: A. E. Nugent et al. 2022, ApJ, 940, 57

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