Gamma-ray Burst 200215A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:39:50 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     956639,   Seg_Num: 0
GRB_RA:           34.122d {+02h 16m 29s} (J2000),
                  34.394d {+02h 17m 35s} (current),
                  33.446d {+02h 13m 47s} (1950)
GRB_DEC:         +12.781d {+12d 46' 50"} (J2000),
                 +12.873d {+12d 52' 24"} (current),
                 +12.549d {+12d 32' 57"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       5274 [cnts]    Image_Peak=497 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       24051 [cnts]
BKG_TIME:        52759.55 SOD {14:39:19.55} UT
BKG_DUR:         8 [sec]
GRB_DATE:        18894 TJD;    46 DOY;   20/02/15
GRB_TIME:        52771.97 SOD {14:39:31.97} UT
GRB_PHI:         -167.81 [deg]
GRB_THETA:        34.05 [deg]
SOLN_STATUS:     0x20000003
RATE_SIGNIF:     37.12 [sigma]
IMAGE_SIGNIF:    16.49 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2  +5  +0  +0 -34  +0 
SUN_POSTN:       328.61d {+21h 54m 26s}  -12.72d {-12d 43' 24"}
SUN_DIST:         70.06 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.76d {+15h 23m 02s}  -14.70d {-14d 41' 56"}
MOON_DIST:       164.01 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.98,-45.07 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       36.15, -0.84 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 8.29,-10.31 [deg].  
COMMENTS:           
COMMENTS:        NOTE: This BAT event is temporally(0.0<100sec) coincident with the FERMI_GBM event (trignum=603470376).

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:39:36 UT
NOTICE_TYPE:     Fermi-GBM Flight Position
RECORD_NUM:      44
TRIGGER_NUM:     603470376
GRB_RA:           34.050d {+02h 16m 12s} (J2000),
                  34.292d {+02h 17m 10s} (current),
                  33.448d {+02h 13m 48s} (1950)
GRB_DEC:         -13.900d {-13d 54' 00"} (J2000),
                 -13.807d {-13d 48' 25"} (current),
                 -14.131d {-14d 07' 52"} (1950)
GRB_ERROR:       10.35 [deg radius, statistical plus systematic]
GRB_INTEN:       198 [cnts/sec]
DATA_SIGNIF:     13.30 [sigma]
INTEG_TIME:      2.048 [sec]
GRB_DATE:        18894 TJD;    46 DOY;   20/02/15
GRB_TIME:        52771.85 SOD {14:39:31.85} UT
GRB_PHI:         296.00 [deg]
GRB_THETA:        60.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO:      0.63
LOC_ALGORITHM:   3 (version number of)
MOST_LIKELY:      92%  GRB
2nd_MOST_LIKELY:   4%  Distant Particles
DETECTORS:       0,0,0, 1,1,0, 0,0,0, 0,0,0, 0,0,
SUN_POSTN:       328.61d {+21h 54m 26s}  -12.72d {-12d 43' 24"}
SUN_DIST:         63.73 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.76d {+15h 23m 02s}  -14.70d {-14d 41' 54"}
MOON_DIST:       147.17 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      183.39,-66.21 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       26.62,-25.89 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_lc_medres34_bn200215611.gif
COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
COMMENTS:        This trigger occurred at longitude,latitude = 91.68,-22.48 [deg].  
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/FERMI NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:39:48 UT
NOTICE_TYPE:     Fermi-GBM Ground Position
RECORD_NUM:      57
TRIGGER_NUM:     603470376
GRB_RA:           30.920d {+02h 03m 41s} (J2000),
                  31.182d {+02h 04m 44s} (current),
                  30.270d {+02h 01m 05s} (1950)
GRB_DEC:          +3.840d {+03d 50' 24"} (J2000),
                  +3.936d {+03d 56' 10"} (current),
                  +3.600d {+03d 36' 01"} (1950)
GRB_ERROR:       4.95 [deg radius, statistical only]
DATA_SIGNIF:     13.80 [sigma]
DATA_INTERVAL:   2.048 [sec]
GRB_DATE:        18894 TJD;    46 DOY;   20/02/15
GRB_TIME:        52771.85 SOD {14:39:31.85} UT
GRB_PHI:         295.00 [deg]
GRB_THETA:        78.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   4173 (Gnd S/W Version number)
SUN_POSTN:       328.61d {+21h 54m 26s}  -12.72d {-12d 43' 24"}
SUN_DIST:         64.33 [deg]   Sun_angle= -4.2 [hr] (East of Sun)
MOON_POSTN:      230.76d {+15h 23m 02s}  -14.70d {-14d 41' 56"}
MOON_DIST:       157.91 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      155.08,-54.46 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       30.14, -8.19 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_lc_medres34_bn200215611.gif
POS_MAP_URL:     http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_603470376.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:     Sat 15 Feb 20 14:48:51 UT
NOTICE_TYPE:     Fermi-GBM Final Position
RECORD_NUM:      0
TRIGGER_NUM:     603470376
GRB_RA:           30.530d {+02h 02m 07s} (J2000),
                  30.798d {+02h 03m 12s} (current),
                  29.865d {+01h 59m 28s} (1950)
GRB_DEC:         +10.020d {+10d 01' 12"} (J2000),
                 +10.116d {+10d 06' 59"} (current),
                  +9.779d {+09d 46' 46"} (1950)
GRB_ERROR:       4.55 [deg radius, statistical only]
GRB_DATE:        18894 TJD;    46 DOY;   20/02/15
GRB_TIME:        52771.85 SOD {14:39:31.85} UT
GRB_PHI:         294.00 [deg]
GRB_THETA:        84.00 [deg]
E_RANGE:         44.032 - 279.965 [keV]
LOC_ALGORITHM:   41731 (Gnd S/W Version number)
SUN_POSTN:       328.62d {+21h 54m 28s}  -12.72d {-12d 43' 16"}
SUN_DIST:         65.83 [deg]   Sun_angle= -4.1 [hr] (East of Sun)
MOON_POSTN:      230.84d {+15h 23m 22s}  -14.73d {-14d 43' 33"}
MOON_DIST:       159.90 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      150.09,-49.09 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       31.91, -2.26 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL:          http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_lc_medres34_bn200215611.gif
LOC_URL:         http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_locplot_all_bn200215611.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(3.0<100sec) coincident with the CALET_GBM event (trignum=1265812510).

GCN NOTICE

TITLE:           GCN/CALET NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:40:21 UT
NOTICE_TYPE:     CALET GBM Flight Lightcurve
POINT_RA:         30.30d {+02h 01m 12s} (J2000),
POINT_DEC:       +27.43d {+27d 25' 48"} (J2000),
TRIGGER_NUM:     1265812510    
TRIGGER_DATE:    18894 TJD;    46 DOY;   20/02/15
TRIGGER_TIME:    52768.08 SOD {14:39:28.08} UT
TRIGGER_DET:     0 0 1 (HXM1 HXM2 SGM)
SIGNIFICANCE:    12.09 [sigma] 
FOREGND_DUR:     4.00 [sec]    
BACKGND_DUR1:    16.00 [sec]   
ENERGY_BAND:     40-230 [keV]  
SC_LON_LAT:      25.62,27.52 [deg]
LC_URL:          http://cgbm.calet.jp/cgbm_trigger/flight//1265812510/index.html
COMMENTS:        CALET-GBM Flight Lightcurve.
COMMENTS:
COMMENTS:        NOTE: This CALET_GBM_FLT_LC event is temporally(3.0<100sec) coincident with the SWIFT_BAT event (trignum=956639).
COMMENTS:        The LC_URL file will not be created until ~15 min after the trigger.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:41:08 UT
NOTICE_TYPE:     Swift-XRT Nack-Position
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.114d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.783d {+12d 46' 59"} (J2000)
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52859.08 SOD {14:40:59.08} UT,   87.1 [sec] since BAT Trigger Time
COUNTS:          17    Min_needed= 20
STD_DEV:         0.00   Max_StdDev_for_Good=28.44 [arcsec]
PH2_ITER:        3    Max_iter_allowed= 4
ERROR_CODE:      1
COMMENTS:        SWIFT-XRT Nack Position.  
COMMENTS:        No source found in the image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:44:49 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     956639,   Seg_Num: 0
GRB_RA:           34.122d {+02h 16m 29s} (J2000),
                  34.394d {+02h 17m 35s} (current),
                  33.446d {+02h 13m 47s} (1950)
GRB_DEC:         +12.781d {+12d 46' 50"} (J2000),
                 +12.873d {+12d 52' 24"} (current),
                 +12.549d {+12d 32' 57"} (1950)
GRB_DATE:        18894 TJD;    46 DOY;   20/02/15
GRB_TIME:        52771.97 SOD {14:39:31.97} UT
TRIGGER_INDEX:   146
GRB_PHI:         -167.81 [deg]
GRB_THETA:        34.05 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     37.12 [sigma]
IMAGE_SIGNIF:    16.49 [sigma]
LC_URL:          sw00956639000msb.lc
SUN_POSTN:       328.61d {+21h 54m 27s}  -12.72d {-12d 43' 19"}
SUN_DIST:         70.06 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.81d {+15h 23m 13s}  -14.71d {-14d 42' 50"}
MOON_DIST:       163.96 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.98,-45.07 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       36.15, -0.84 [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 = 8.29,-10.31 [deg].  
COMMENTS:        The 3rd packet (of 3) was missing in the lightcurve data stream.

GCN Circular #27078
The Fermi GBM team reports the detection of a likely LONG GRB
At 14:39:31 UT on 15 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200215A (trigger 603470376.849696 / 200215611).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 30.5, Dec = 10.0 (J2000 degrees, equivalent to J2000 02h 01m, 10d 00'), with a statistical uncertainty of 4.5 degrees.
The angle from the Fermi LAT boresight is 84.0 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_skymap_all_bn200215611.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/bn200215611/quicklook/glg_healpix_all_bn200215611.fit
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200215611/quicklook/glg_lc_medres34_bn200215611.gif

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:56:15 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.114d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.783d {+12d 46' 59"} (J2000)
POINT_ROLL:      251.105d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52861.97 SOD {14:41:01.97} UT,   90.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.786
N_STARS:         21
X_OFFSET:        409 [pixels]
Y_OFFSET:        528 [pixels]
X_MAX:           1368 [pixels]
Y_MAX:           1487 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    11
SL_URL:          sw00956639000msufc0089.fits
SUN_POSTN:       328.62d {+21h 54m 29s}  -12.72d {-12d 43' 10"}
SUN_DIST:         70.05 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.91d {+15h 23m 39s}  -14.75d {-14d 44' 53"}
MOON_DIST:       163.85 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:56:32 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.114d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.783d {+12d 46' 59"} (J2000)
POINT_ROLL:      251.105d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52861.97 SOD {14:41:01.97} UT,   90.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.786
N_STARS:         21
X_OFFSET:        409 [pixels]
Y_OFFSET:        528 [pixels]
X_MAX:           1368 [pixels]
Y_MAX:           1487 [pixels]
DET_THRESH:      18
PHOTO_THRESH:    11
SL_URL:          sw00956639000msufc0089.fits
SUN_POSTN:       328.62d {+21h 54m 29s}  -12.72d {-12d 43' 09"}
SUN_DIST:         70.05 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.92d {+15h 23m 40s}  -14.75d {-14d 44' 56"}
MOON_DIST:       163.84 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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:     Sat 15 Feb 20 14:57:41 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.114d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.783d {+12d 46' 59"} (J2000)
ROLL:            251.105d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52861.97 SOD {14:41:01.97} UT,   90.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603470486
X_OFFSET:        728 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       888
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00956639000msuni0114.fits
SUN_POSTN:       328.62d {+21h 54m 29s}  -12.72d {-12d 43' 08"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.93d {+15h 23m 42s}  -14.75d {-14d 45' 09"}
MOON_DIST:       163.83 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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:     Sat 15 Feb 20 14:57:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.114d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.783d {+12d 46' 59"} (J2000)
ROLL:            251.105d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52861.97 SOD {14:41:01.97} UT,   90.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603470486
X_OFFSET:        728 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       888
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00956639000msuni0114.fits
SUN_POSTN:       328.62d {+21h 54m 29s}  -12.72d {-12d 43' 08"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.93d {+15h 23m 43s}  -14.75d {-14d 45' 11"}
MOON_DIST:       163.83 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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 NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 14:57:55 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     956639,   Seg_Num: 0
GRB_RA:           34.0797d {+02h 16m 19.12s} (J2000),
                  34.3519d {+02h 17m 24.45s} (current),
                  33.4045d {+02h 13m 37.06s} (1950)
GRB_DEC:         +12.7706d {+12d 46' 14.1"} (J2000),
                 +12.8632d {+12d 51' 47.6"} (current),
                 +12.5391d {+12d 32' 20.7"} (1950)
GRB_ERROR:       3.8 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52888.00 SOD {14:41:28.00} UT,   116.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       328.62d {+21h 54m 29s}  -12.72d {-12d 43' 08"}
SUN_DIST:         70.01 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.93d {+15h 23m 43s}  -14.75d {-14d 45' 11"}
MOON_DIST:       163.80 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.94,-45.10 [deg] galactic lon,lat of the burst
ECL_COORDS:       36.11, -0.83 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.  
COMMENTS:        This Notice was ground-generated -- not flight-generated.  
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:        The probability that this is a serendipitous source in the  
COMMENTS:        SPER window is 0.58% < P(seren) < 1.1%.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 15:04:07 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.113d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.786d {+12d 47' 09"} (J2000)
POINT_ROLL:      251.103d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  53629.70 SOD {14:53:49.70} UT,   857.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.987
N_STARS:         35
X_OFFSET:        169 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1608 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      19
PHOTO_THRESH:    11
SL_URL:          sw00956639000msufc0857.fits
SUN_POSTN:       328.63d {+21h 54m 30s}  -12.72d {-12d 43' 03"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.99d {+15h 23m 57s}  -14.77d {-14d 46' 18"}
MOON_DIST:       163.77 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 15:04:24 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.113d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.786d {+12d 47' 09"} (J2000)
POINT_ROLL:      251.103d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  53629.70 SOD {14:53:49.70} UT,   857.7 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        4.987
N_STARS:         35
X_OFFSET:        169 [pixels]
Y_OFFSET:        288 [pixels]
X_MAX:           1608 [pixels]
Y_MAX:           1727 [pixels]
DET_THRESH:      19
PHOTO_THRESH:    11
SL_URL:          sw00956639000msufc0857.fits
SUN_POSTN:       328.63d {+21h 54m 30s}  -12.72d {-12d 43' 03"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.99d {+15h 23m 58s}  -14.77d {-14d 46' 21"}
MOON_DIST:       163.77 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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:     Sat 15 Feb 20 15:04:58 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.113d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.786d {+12d 47' 09"} (J2000)
ROLL:            251.103d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  53629.70 SOD {14:53:49.70} UT,   857.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603471254
X_OFFSET:        728 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       888
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00956639000msuni0882.fits
SUN_POSTN:       328.63d {+21h 54m 30s}  -12.72d {-12d 43' 02"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      231.00d {+15h 23m 59s}  -14.77d {-14d 46' 27"}
MOON_DIST:       163.76 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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 NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sat 15 Feb 20 15:04:46 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     956639,   Seg_Num: 0
POINT_RA:         34.113d {+02h 16m 27s} (J2000)
POINT_DEC:       +12.786d {+12d 47' 09"} (J2000)
ROLL:            251.103d
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  53629.70 SOD {14:53:49.70} UT,   857.7 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     603471254
X_OFFSET:        728 [pixels]
Y_OFFSET:        847 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       888
Y_GRB_POS:       1007
BINNING_INDEX:   1
IM_URL:          sw00956639000msuni0882.fits
SUN_POSTN:       328.63d {+21h 54m 30s}  -12.72d {-12d 43' 02"}
SUN_DIST:         70.04 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      230.99d {+15h 23m 58s}  -14.77d {-14d 46' 25"}
MOON_DIST:       163.77 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.97,-45.07 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       36.15, -0.83 [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:     Sat 15 Feb 20 15:11:44 UT
NOTICE_TYPE:     Swift-XRT Position UPDATE
TRIGGER_NUM:     956639,   Seg_Num: 0
GRB_RA:           34.0793d {+02h 16m 19.03s} (J2000),
                  34.3515d {+02h 17m 24.35s} (current),
                  33.4041d {+02h 13m 36.97s} (1950)
GRB_DEC:         +12.7704d {+12d 46' 13.4"} (J2000),
                 +12.8630d {+12d 51' 46.9"} (current),
                 +12.5389d {+12d 32' 20.0"} (1950)
GRB_ERROR:       2.1 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       1.00e-10 [erg/cm2/sec]
GRB_SIGNIF:      10.00 [sigma]
IMG_START_DATE:  18894 TJD;    46 DOY;   20/02/15
IMG_START_TIME:  52888.00 SOD {14:41:28.00} UT,   116.0 [sec] since BAT Trigger Time
TAM[0-3]:        100.00 100.00 100.00 100.00
AMPLIFIER:       1
WAVEFORM:        31
SUN_POSTN:       328.63d {+21h 54m 32s}  -12.72d {-12d 42' 56"}
SUN_DIST:         70.00 [deg]   Sun_angle= -4.4 [hr] (East of Sun)
MOON_POSTN:      231.06d {+15h 24m 14s}  -14.79d {-14d 47' 40"}
MOON_DIST:       163.67 [deg]
MOON_ILLUM:      54 [%]
GAL_COORDS:      152.94,-45.10 [deg] galactic lon,lat of the burst
ECL_COORDS:       36.11, -0.83 [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 0.58% < P(seren) < 1.1%.

GCN Circular #27079
M. G. Bernardini (INAF-OAB), P. D'Avanzo (INAF-OAB), J.D. Gropp (PSU), J. A. Kennea (PSU), N. J. Klingler (PSU), H. A. Krimm (NSF), N. P. M. Kuin (UCL-MSSL), S. Laha (GSFC/UMBC/CRESST), A. Melandri (INAF-OAB), K. L. Page (U Leicester), D. M. Palmer (LANL), T. Sbarrato (INAF-OAB) and M. H. Siegel (PSU) report on behalf of the Neil Gehrels Swift Observatory Team:
At 14:39:31 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 200215A (trigger=956639). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 34.122, +12.781 which is
```
   RA(J2000) = 02h 16m 29s
   Dec(J2000) = +12d 46' 50"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve up to T+8s showed a single-peaked structure with a duration of about 20 sec. (The light curve after T+8s is not immediately available.) The peak count rate was ~4000 counts/sec (15-350 keV), at ~0 sec after the trigger.
The XRT began observing the field at 14:40:59.0 UT, 87.1 seconds after the BAT trigger. Using promptly downlinked data we find a fading, uncatalogued X-ray source with an enhanced position: RA, Dec 34.0794, 12.7704 which is equivalent to:
```
   RA(J2000)  = 02h 16m 19.05s
   Dec(J2000) = +12d 46' 13.6"
```
with an uncertainty of 2.1 arcseconds (radius, 90% containment). This location is 154 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 (1.21 x 10^21 cm^-2, Willingale et al. 2013), with an excess column of 4.2 (+3.73/-3.12) x 10^21 cm^-2 (90% confidence).
UVOT took a finding chart exposure of 150 seconds with the White filter starting 90 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 none of the XRT error circle. 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 0.15.
Burst Advocate for this burst is M. G. Bernardini (grazia.bernardini AT brera.inaf.it). 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 #27080
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-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the Swift GRB200215.61 (trigger No 956639,02h 16m 29.28s , +12d 46m 51.6s, R=0.05) errorbox 20 sec after notice time and 40 sec after trigger time at 2020-02-15 14:40:12 UT, with upper limit up to 18.5 mag. The observations began at zenith distance = 70 deg. The sun altitude is -39.9 deg.
The galactic latitude b = -45 deg., longitude l = 154 deg.
Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1288551
We obtain a following upper limits.
```
Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      46 |        MASTER-Tunka |  P| |    10 | 15.3 |        
      75 |        MASTER-Tunka |  P| |    10 | 15.2 |        
     110 |        MASTER-Tunka |  P| |    20 | 15.5 |        
     160 |        MASTER-Tunka |  P| |    30 | 16.1 |        
     215 |        MASTER-Tunka |  P| |    40 | 16.0 |        
     279 |        MASTER-Tunka |  P| |    50 | 16.4 |        
     354 |        MASTER-Tunka |  P| |    60 | 16.6 |        
     443 |        MASTER-Tunka |  P| |    80 | 16.7 |        
     553 |        MASTER-Tunka |  P| |   100 | 16.7 |        
     682 |        MASTER-Tunka |  P| |   120 | 16.8 |        
     837 |        MASTER-Tunka |  P| |   150 | 16.9 |        
    1021 |        MASTER-Tunka |  P| |   180 | 17.1 |        
    1221 |        MASTER-Tunka |  P| |   180 | 17.0 |        
    1420 |        MASTER-Tunka |  P| |   180 | 16.9 |        
    1761 |        MASTER-Tunka |   C |   180 | 18.5 |        
```
Filter C is a clear (unfiltred) band.
The observation and reduction will continue. The message may be cited.
GCN Circular #27081
D. Xu, Z.P. Zhu, X. Liu, B.Y. Yu, Y. Ma (NAOC), X. Gao (Urumqi No.1 Senior High School) report:
We observed the field of GRB 200215A (Bernardini et al., GCN 27079) using the NEXT 0.6m optical telescope located at Nanshan, Xinjiang, China. Observations automatically started at 14:40:59 UT on 2002-02-15, i.e., 88 s after the BAT trigger. We obtained 3x40 s, 4x60 s, and 5x90 s frames in the Sloan r-filter. Observations then ended due to follow-ups of LIGO/Virgo S200213t.
No optical afterglow is detected in our images at the XRT position (Bernardini et al., GCN 27079) down to a limiting magnitude of r~18.0, calibrated with the nearby PanSTARRS field.
GCN Circular #27083
D. A. Kann (HETH/IAA-CSIC), and A. de Ugarte Postigo (HETH/IAA-CSIC, DARK/NBI) report:
In PanSTARRS imaging of the field of GRB 200215A (Bernardini et al., GCN 27079), we find a bright, extended object (1".5 x 1".7) at the edge of the enhanced XRT error circle given in Bernardini et al.
According to the PanSTARRS catalog, the source lies at:
```
RA = 02:16:19.065 (J2000)
Dec. = +12:46:09.67 (J2000)
```
The Kron magnitudes in the catalog are given as:
```
g_PS = 21.73 +/- 0.06,
r_PS = 20.90 +/- 0.07,
i_PS = 20.26 +/- 0.06,
z_PS = 19.89 +/- 0.05,
y_PS = 19.58 +/- 0.10
```
We suggest this galaxy may be the host galaxy of GRB 200215A, implying a low redshift.
There is another clear extended galaxy to the east of this source, the relationship between the two is unclear at this time.
Spectroscopy of these galaxies is encouraged.
GCN Circular #27086
D. A. Perley and A. M. Cockeram (LJMU) report:
We observed the field of GRB 200215A (Bernardini et al., GCN 27079) with the IO:O imager on the 2m robotic Liverpool Telescope between 19:56 and 20:14 UT on 2019-02-15. We acquired 3x150s exposures in each of the i and z filters. No counterpart is detected within the XRT error circle in either filter. Calibrating relative to nearby standards from the Pan-STARRS 1 catalog, we place upper limits (3-sigma) of:
```
i > 22.90  (t = 0.2204 days)
z > 21.95  (t = 0.2264 days)
```
GCN Circular #27087
S.Poolakkil (UAH) and C. Meegan (UAH) report on behalf of the Fermi GBM Team:
"At 14:39:31.85 UT on 15 February 2020, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 200215A (trigger 603470376 / 200215611), which was also detected by the Swift/BAT (Bernardini et al. 2020, GCN 27079). 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 degrees.
The GBM light curve consists of a single bright pulse followed by some extended emission with a duration (T90) of about 24 s (50-300 keV). The time-averaged spectrum from T0-4.09 s to T0+5.12 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.76 +/- 0.16 and the cutoff energy, parameterized as Epeak, is 162 +/- 25 keV.
The event fluence (10-1000 keV) in this time interval is (1.858 +/- 0.175)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.06 s in the 10-1000 keV band is 3.7 +/- 0.3 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 #27088
A. de Ugarte Postigo (HETH/IAA-CSIC, DARK/NBI), D. A. Kann, M. Blazek, F. Agui Fernandez, C. Thoene (all HETH/IAA-CSIC), I. Hermelo, B. Arroyo (both CAHA), Y. Ascasibar, A. Gutierrez Adame, A. Cayrol Bernardo, A. Rodriguez Ortega, A. Rayo Mato, M. Rocamora Bernal, M. A. Diaz Teodori, P. Nu�ez Yebra, S. Ortega Martinez, G Meeus, D. Barba Gonzalez, L Brenes Gil, J. Ferrer Ereza, H. Garcia Escudero, S. Jaraba G�mez, D. Lopez Cano, P. Sanchez Alarcon, P Santamarina Guerrero, A. Romar Tejeiro (UAM) report:
We observed the field of GRB 200215A (Bernardini et al., GCN 27079) with CAFOS on the 2.2m telescope at Calar Alto Observatory, in Almeria (Spain). Our observation started at 19:15 UT (4.591 hr after the burst) and consisted of 5x720 s in Rc band.
We detect no optical counterpart within the XRT error circle down to a 3-sigma limit of 24.0 mag.
GCN Circular #27089
P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team.
Using 3846 s of XRT Photon Counting mode data and 3 UVOT images for GRB 200215A, 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 = 34.07940, +12.77079 which is equivalent to:
```
RA (J2000): 02h 16m 19.06s
Dec (J2000): +12d 46' 14.9"
```
with an uncertainty of 1.5 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 #27090
N. P. M. Kuin (UCL-MSSL) and M. G. Bernardini (INAF-OAB) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 200215A 90 s after the BAT trigger (Bernardini et al., GCN Circ. 27079). No optical afterglow consistent with the XRT position (Evans et al. GCN Circ. 27089) 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            90          240          147         >20.0
u_FC               302          552          246         >20.0
white               90         7290          581         >21.2
v                  634         5070          294         >18.5
b                  559         7092          294         >19.8
u                  302         6885          481         >20.3
w1                1087         6680          216         >19.2
w2               10534        11091          547         >19.8
```
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.15 in the direction of the burst (Schlegel et al. 1998).
GCN Circular #27091
M. Perri (ASDC), V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), B. Sbarufatti (PSU), K.L. Page (U. Leicester), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester) and M.G. Bernardini report on behalf of the Swift-XRT team:
We have analysed 7.4 ks of XRT data for GRB 200215A (Bernardini et al. GCN Circ. 27079), from 72 s to 35.0 ks after the BAT trigger. The data comprise 24 s in Windowed Timing (WT) mode (the first 9 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 Evans et al. (GCN Circ. 27089).
The light curve can be modelled with a power-law decay with a decay index of alpha=0.93 (+/-0.04).
A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 1.47 (+0.18, -0.17). The best-fitting absorption column is 1.7 (+0.8, -0.5) x 10^21 cm^-2, consistent with the Galactic value of 1.2 x 10^21 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 (5.5 x 10^-11) erg cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
```
Total column:	     1.7 (+0.8, -0.5) x 10^21 cm^-2
Galactic foreground: 1.2 x 10^21 cm^-2
Excess significance: <1.6 sigma
Photon index:	     1.47 (+0.18, -0.17)
```
If the light curve continues to decay with a power-law decay index of 0.93, the count rate at T+24 hours will be 7.5 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.6 x 10^-13 (4.1 x 10^-13) erg cm^-2 s^-1.
The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00956639.
This circular is an official product of the Swift-XRT team.
GCN Circular #27098
S. D. Barthelmy (GSFC), M. G. Bernardini (INAF-OAB), H. A. Krimm (NSF),
S. Laha (GSFC/UMBC), A. Y. Lien (GSFC/UMBC), 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 200215A (trigger #956639) (Bernardini, et al., GCN Circ. 27079). The BAT ground-calculated position is RA, Dec = 34.100, 12.775 deg which is
```
   RA(J2000)  =  02h 16m 24.1s
   Dec(J2000) = +12d 46' 31.7"
```
with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 73%.
The mask-weighted light curve shows a single symmetrical peak from roughly
-10 sec to +6 sec, peaking at T+0 sec. T90 (15-350 keV) is 11.7 +- 2.2 sec
(estimated error including systematics).
The time-averaged spectrum from T-9.97 to T+5.37 sec is best fit by a simple
power-law model. The power law index of the time-averaged spectrum is
1.41 +- 0.09. The fluence in the 15-150 keV band is 1.1 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T-0.16 sec in the 15-150 keV band is 2.7 +- 0.2 ph/cm2/sec. 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/956639/BA/
GCN Circular #27099
D. Xu, Z.P. Zhu, X. Liu, H.J. Wang, L. Ge (NAOC) report:
We observed the field of GRB 200215A (Bernardini et al., GCN 27079) using the United Kingdom Infra-Red Telescope (UKIRT). Observations started at 05:02:05 UT on 2020-02-16 (i.e., 14.38 hr after the BAT trigger), and 3600 s H-band imagining was obtained.
No afterglow is detected within the Enhanced XRT error circle (Evans et al., GCN 27089) in our stacked image down to a limiting magnitude of H~20.0.
From the PanSTARRS archive, there exists an extended object outside and south to the Enhanced XRT error circle by ~5.1 arcsec, as reported in Kann & de Ugarte Postigo (GCN 27083). It's thus dubbed PS021619+124609 here. As the GRB field is in the previous UKIRT H-band survey, we performed photometry of PS021619+124609 in both epochs. Any significant brightening for PS021619+124609 is ruled out, and we're inclined to think it is not related to the GRB.
We thank the great support of the UKIRT staff, in particular Michael Pohlen.
GCN Circular #27105
Alan M. Watson (UNAM), Nat Butler (ASU), Alexander Kutyrev (GSFC), William H. Lee (UNAM), Michael G. Richer (UNAM), Ori Fox (STScI), J. Xavier Prochaska (UCSC), Josh Bloom (UCB), Antonino Cucchiara (UVI), Eleonora Troja (GSFC), Owen Littlejohns (ASU), Enrico Ramirez-Ruiz (UCSC), Jes�s Gonz�lez (UNAM), Carlos Rom�n-Z��iga (UNAM), Harvey Moseley (GSFC), John Capone (UMD), V. Zach Golkhou (U. Wash.), and Vicki Toy (UMD) report:
We observed the field of GRB 200215A (Bernardini et al., GCN Circ. 27079) with the Reionization and Transients Infrared Camera (RATIR; www.ratir.org) on the 1.5m Harold Johnson Telescope at the Observatorio Astron�mico Nacional on Sierra San Pedro M�rtir from 2020/02 16.11 to 2020/02 16.23 UTC (11.91 to 14.78 hours after the BAT trigger), obtaining a total of 1.79 hours exposure in the r and i bands.
For a source within the enhanced Swift-XRT error circle (Evans et al., GCN Circ. 27089), in comparison with the SDSS DR9 catalog, we obtain the following 3-sigma upper limits:
```
  r	> 22.01
  i	> 23.15
```
These magnitudes are in the AB system and are not corrected for Galactic extinction in the direction of the GRB.
We thank the staff of the Observatorio Astron�mico Nacional in San Pedro M�rtir.

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Jochen Greiner, last update: 16-Feb-2020 [Disclaimer]