//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 27986 SUBJECT: GRB 200619B: Fermi GBM Final Real-time Localization DATE: 20/06/19 11:59:03 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 11:48:43 UT on 19 Jun 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200619B (trigger 614260128.085724 / 200619492). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 200.4, Dec = -45.1 (J2000 degrees, equivalent to J2000 13h 21m, -45d 06'), with a statistical uncertainty of 5.1 degrees. The angle from the Fermi LAT boresight is 54.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200619492/quicklook/glg_skymap_all_bn200619492.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/bn200619492/quicklook/glg_healpix_all_bn200619492.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200619492/quicklook/glg_lc_medres34_bn200619492.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 27994 SUBJECT: GRB 200619B: AstroSat CZTI detection DATE: 20/06/19 21:25:55 GMT FROM: Soumya Gupta at IUCAA/ASTROSAT S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (IUCAA/TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data showed the detection of a long GRB 200619B, which was also detected by Fermi GBM (GCN #27986). The source was clearly detected in the 40-200 keV energy range. The light curve showed a single peak of emission peaking at 2020-06-19 11:48:43.617 UT. The measured peak count rate associated with the burst is 188 +/- 23 cts/s above the background in the combined data of four quadrants, with a total of 917 +/- 11 cts. The local mean background count rate was 520 +/- 1 cts/s. Using cumulative rates, we measure a T90 of 8.182 +/- 0.028 s. 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. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 27995 SUBJECT: Fermi GRB 200619B: Global MASTER-Net observations report DATE: 20/06/19 21:30:24 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs 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-IAC robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200619B ( Fermi GBM team, GCN 27986) errorbox 33291 sec after notice time and 33333 sec after trigger time at 2020-06-19 21:04:16 UT, with upper limit up to 17.6 mag. Observations started at twilight. The observations began at zenith distance = 73 deg. The sun altitude is -12.6 deg. The galactic latitude b = 18 deg., longitude l = 303 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1385756 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 33364 | 2020-06-19 21:04:16 | MASTER-IAC | (13h 02m 42.95s , -43d 52m 47.7s) | C | 60 | 16.8 | 33364 | 2020-06-19 21:04:16 | MASTER-IAC | (12h 51m 30.58s , -43d 48m 31.7s) | C | 60 | 16.5 | 33479 | 2020-06-19 21:06:11 | MASTER-IAC | (12h 40m 35.18s , -43d 53m 58.8s) | C | 60 | 17.1 | 33479 | 2020-06-19 21:06:11 | MASTER-IAC | (12h 29m 22.82s , -43d 49m 45.5s) | C | 60 | 16.6 | 33599 | 2020-06-19 21:08:11 | MASTER-IAC | (12h 59m 07.07s , -41d 55m 02.4s) | C | 60 | 17.1 | 33599 | 2020-06-19 21:08:11 | MASTER-IAC | (12h 48m 15.92s , -41d 50m 44.5s) | C | 60 | 16.7 | 33717 | 2020-06-19 21:10:10 | MASTER-IAC | (13h 02m 47.52s , -43d 55m 04.7s) | C | 60 | 17.4 | 33717 | 2020-06-19 21:10:10 | MASTER-IAC | (12h 51m 34.98s , -43d 50m 47.5s) | C | 60 | 17.0 | 33835 | 2020-06-19 21:12:07 | MASTER-IAC | (12h 40m 32.80s , -43d 53m 38.4s) | C | 60 | 17.4 | 33835 | 2020-06-19 21:12:07 | MASTER-IAC | (12h 29m 20.63s , -43d 49m 25.0s) | C | 60 | 16.9 | 33956 | 2020-06-19 21:14:08 | MASTER-IAC | (12h 59m 10.12s , -41d 54m 43.7s) | C | 60 | 17.6 | 33956 | 2020-06-19 21:14:08 | MASTER-IAC | (12h 48m 19.17s , -41d 50m 26.5s) | C | 60 | 17.1 | 34075 | 2020-06-19 21:16:08 | MASTER-IAC | (12h 37m 44.18s , -41d 53m 32.1s) | C | 60 | 17.4 | 34075 | 2020-06-19 21:16:08 | MASTER-IAC | (12h 26m 53.44s , -41d 49m 18.4s) | C | 60 | 17.0 | 34193 | 2020-06-19 21:18:05 | MASTER-IAC | (12h 56m 39.20s , -39d 54m 15.7s) | C | 60 | 17.6 | 34193 | 2020-06-19 21:18:05 | MASTER-IAC | (12h 46m 07.71s , -39d 49m 58.5s) | C | 60 | 17.2 | 34311 | 2020-06-19 21:20:04 | MASTER-IAC | (13h 20m 37.46s , -41d 53m 18.1s) | C | 60 | 17.5 | 34311 | 2020-06-19 21:20:04 | MASTER-IAC | (13h 09m 46.98s , -41d 48m 58.6s) | C | 60 | 17.4 | 34434 | 2020-06-19 21:22:07 | MASTER-IAC | (12h 37m 43.41s , -41d 54m 19.0s) | C | 60 | 17.5 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.