//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 25783 SUBJECT: GRB 190919A: Fermi GBM Final Real-time Localization DATE: 19/09/19 18:30:16 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 18:20:02 UT on 19 Sep 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190919A (trigger 590610007.65552 / 190919764). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 357.4, Dec = -21.8 (J2000 degrees, equivalent to J2000 23h 49m, -21d 48'), with a statistical uncertainty of 2.5 degrees. The angle from the Fermi LAT boresight is 83.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190919764/quicklook/glg_skymap_all_bn190919764.png The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190919764/quicklook/glg_healpix_all_bn190919764.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190919764/quicklook/glg_lc_medres34_bn190919764.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 25787 SUBJECT: Integral GRB190919.99: Global MASTER-Net observations report DATE: 19/09/20 00:40:05 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 (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 Integral GRB190919.99 (trigger No 8377,20h 48m 58.080s , -44d 38m 49.20s, R=0.0505) errorbox 26 sec after trigger time at 2019-09-19 23:47:17 UT, with upper limit up to 19.6 mag. The observations began at zenit distance = 24 deg. The sun altitude is -17.5 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) was pointed to the Integral GRB190919.99 errorbox 32 sec after trigger time at 2019-09-19 23:47:23 UT, with upper limit up to 19.0 mag. The observations began at zenit distance = 77 deg. The sun altitude is -56.2 deg. MASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) was pointed to the Integral GRB190919.99 errorbox 54 sec after trigger time at 2019-09-19 23:47:45 UT, with upper limit up to 16.4 mag. The observations began at zenit distance = 50 deg. The sun altitude is -54.7 deg. The galactic latitude b = -60 deg., longitude l = 98 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1142730 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 32 | MASTER-OAFA | C | 10 | 16.7 | 57 | MASTER-OAFA | C | 60 | 18.0 | Coadd 342 | MASTER-OAFA | C | 630 | 19.6 | Coadd 38 | MASTER-IAC | P| | 10 | 16.2 | 53 | MASTER-IAC | P| | 40 | 17.0 | Coadd 308 | MASTER-IAC | P| | 550 | 19.0 | Coadd 38 | MASTER-IAC | P- | 10 | 15.7 | 53 | MASTER-IAC | P- | 40 | 16.7 | Coadd 368 | MASTER-IAC | P- | 670 | 18.1 | Coadd 60 | MASTER-SAAO | P\ | 10 | 14.9 | 80 | MASTER-SAAO | P\ | 50 | 15.6 | Coadd 66 | MASTER-IAC | P- | 10 | 15.6 | 66 | MASTER-IAC | P| | 10 | 16.1 | 86 | MASTER-OAFA | C | 20 | 17.1 | 90 | MASTER-SAAO | P\ | 20 | 15.1 | 99 | MASTER-IAC | P| | 20 | 16.7 | 99 | MASTER-IAC | P- | 20 | 16.1 | 126 | MASTER-SAAO | P\ | 20 | 15.1 | 143 | MASTER-IAC | P| | 30 | 16.8 | 188 | MASTER-IAC | P| | 120 | 17.8 | Coadd 143 | MASTER-IAC | P- | 30 | 16.4 | 188 | MASTER-IAC | P- | 120 | 17.3 | Coadd 150 | MASTER-OAFA | C | 30 | 17.5 | 173 | MASTER-SAAO | P\ | 30 | 15.4 | 218 | MASTER-SAAO | P\ | 120 | 16.2 | Coadd 199 | MASTER-IAC | P- | 40 | 16.5 | 200 | MASTER-IAC | P| | 40 | 16.9 | 224 | MASTER-SAAO | P\ | 40 | 15.7 | 226 | MASTER-OAFA | C | 40 | 17.8 | 296 | MASTER-OAFA | C | 180 | 18.8 | Coadd 264 | MASTER-IAC | P- | 50 | 16.6 | 264 | MASTER-IAC | P| | 50 | 17.2 | 284 | MASTER-SAAO | P\ | 50 | 15.7 | 317 | MASTER-OAFA | C | 60 | 18.0 | 337 | MASTER-IAC | P- | 60 | 16.7 | 427 | MASTER-IAC | P- | 240 | 17.7 | Coadd 337 | MASTER-IAC | P| | 60 | 17.4 | 427 | MASTER-IAC | P| | 240 | 18.3 | Coadd 355 | MASTER-SAAO | P\ | 60 | 16.0 | 445 | MASTER-SAAO | P\ | 240 | 16.4 | Coadd 427 | MASTER-IAC | P- | 80 | 16.9 | 427 | MASTER-IAC | P| | 80 | 17.5 | 427 | MASTER-OAFA | C | 80 | 18.3 | 440 | MASTER-SAAO | P\ | 80 | 15.8 | 536 | MASTER-IAC | P| | 100 | 17.7 | 536 | MASTER-IAC | P- | 100 | 17.2 | 554 | MASTER-SAAO | P\ | 100 | 15.7 | 556 | MASTER-OAFA | C | 100 | 18.4 | 701 | MASTER-OAFA | C | 390 | 19.4 | Coadd 665 | MASTER-IAC | P- | 120 | 17.2 | 830 | MASTER-IAC | P- | 450 | 17.9 | Coadd 691 | MASTER-SAAO | P\ | 130 | 15.7 | 861 | MASTER-SAAO | P\ | 470 | 15.8 | Coadd 711 | MASTER-OAFA | C | 130 | 18.5 | 819 | MASTER-IAC | P| | 150 | 18.0 | 999 | MASTER-IAC | P| | 510 | 18.0 | Coadd 819 | MASTER-IAC | P- | 150 | 17.3 | 868 | MASTER-SAAO | P\ | 160 | 15.4 | 896 | MASTER-OAFA | C | 160 | 18.8 | 1006 | MASTER-IAC | P| | 180 | 17.9 | 1006 | MASTER-IAC | P- | 180 | 17.4 | 1056 | MASTER-SAAO | P\ | 180 | 14.6 | 1107 | MASTER-OAFA | C | 180 | 18.8 | 1287 | MASTER-OAFA | C | 540 | 19.5 | Coadd 1251 | MASTER-IAC | P| | 180 | 18.1 | 1251 | MASTER-IAC | P- | 180 | 17.4 | 1431 | MASTER-IAC | P- | 540 | 18.0 | Coadd 1280 | MASTER-SAAO | P\ | 180 | 15.3 | 1329 | MASTER-OAFA | C | 180 | 18.9 | 1490 | MASTER-SAAO | P\ | 180 | 15.1 | 1500 | MASTER-IAC | P| | 180 | 18.0 | 1680 | MASTER-IAC | P| | 540 | 18.6 | Coadd 1500 | MASTER-IAC | P- | 180 | 17.4 | 1550 | MASTER-OAFA | C | 180 | 18.8 | 1717 | MASTER-SAAO | P\ | 180 | 15.4 | 1744 | MASTER-IAC | P| | 180 | 17.8 | 1744 | MASTER-IAC | P- | 180 | 17.2 | 1770 | MASTER-OAFA | C | 180 | 18.9 | 1950 | MASTER-OAFA | C | 540 | 19.6 | Coadd 1928 | MASTER-SAAO | P\ | 180 | 15.3 | 1988 | MASTER-OAFA | C | 180 | 18.9 | 1990 | MASTER-IAC | P| | 180 | 17.8 | 1990 | MASTER-IAC | P- | 180 | 17.2 | 2170 | MASTER-IAC | P- | 540 | 17.8 | Coadd 2156 | MASTER-SAAO | P\ | 180 | 15.7 | 2209 | MASTER-OAFA | C | 180 | 19.0 | 2240 | MASTER-IAC | P| | 180 | 17.8 | 2240 | MASTER-IAC | P- | 180 | 17.1 | 2387 | MASTER-SAAO | P\ | 180 | 15.7 | 2431 | MASTER-OAFA | C | 180 | 19.0 | 2489 | MASTER-IAC | P| | 180 | 17.8 | 2489 | MASTER-IAC | P- | 180 | 17.1 | 2652 | MASTER-OAFA | C | 180 | 19.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 25935 SUBJECT: GRB 190919A: AstroSat CZTI detection DATE: 19/10/03 12:38:11 GMT FROM: Ramkrishna Gaikwad at IUCAA/AstroSat R. Gaikwad, V. Sharma, D. Bhattacharya and A. Vibhute (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data showed the detection of a GRB 190919A, which was also detected by Fermi GBM Final Real-time Localization (GCN #25783). The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple pulses of emission with the strongest peak at 2019-09-19 18:20:02.0 UT. The measured peak count rate associated with the burst is 340 cts/s above the background in the combined data of four quadrants, with a total of 4389 cts. The local mean background count rate was 492 cts/s. Using cumulative rates, we measure a T90 of 42.6 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.