//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28525 SUBJECT: GRB 200929A: Fermi GBM Final Real-time Localization DATE: 20/09/29 05:03:31 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 04:53:12 UT on 29 Sep 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200929A (trigger 623047997.2666 / 200929204). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 217.4, Dec = -34.3 (J2000 degrees, equivalent to J2000 14h 29m, -34d 17'), with a statistical uncertainty of 11.5 degrees. The angle from the Fermi LAT boresight is 47.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200929204/quicklook/glg_skymap_all_bn200929204.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/bn200929204/quicklook/glg_healpix_all_bn200929204.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200929204/quicklook/glg_lc_medres34_bn200929204.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28527 SUBJECT: Fermi GRB 200929A: Global MASTER-Net observations report DATE: 20/09/29 18:00:36 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), 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-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 200929A ( Fermi GBM team, GCN 28525) errorbox 45480 sec after notice time and 45547 sec after trigger time at 2020-09-29 17:32:19 UT, with upper limit up to 18.4 mag. Observations started at twilight. The observations began at zenith distance = 62 deg. The sun altitude is -11.9 deg. The galactic latitude b = 24 deg., longitude l = 326 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1450924 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 45577 | 2020-09-29 17:32:19 | MASTER-SAAO | (14h 27m 12.44s , -33d 55m 11.0s) | C | 60 | 17.9 | 45577 | 2020-09-29 17:32:19 | MASTER-SAAO | (14h 26m 11.75s , -33d 55m 20.0s) | C | 60 | 17.7 | 45657 | 2020-09-29 17:33:39 | MASTER-SAAO | (14h 28m 59.16s , -35d 56m 07.4s) | C | 60 | 18.1 | 45657 | 2020-09-29 17:33:39 | MASTER-SAAO | (14h 27m 56.97s , -35d 56m 15.7s) | C | 60 | 17.9 | 45737 | 2020-09-29 17:34:59 | MASTER-SAAO | (14h 26m 37.00s , -31d 57m 15.2s) | C | 60 | 17.9 | 45737 | 2020-09-29 17:34:59 | MASTER-SAAO | (14h 25m 37.92s , -31d 57m 22.3s) | C | 60 | 17.8 | 45816 | 2020-09-29 17:36:18 | MASTER-SAAO | (14h 31m 52.47s , -37d 57m 00.0s) | C | 60 | 18.2 | 45816 | 2020-09-29 17:36:18 | MASTER-SAAO | (14h 30m 48.73s , -37d 57m 07.2s) | C | 60 | 18.0 | 45896 | 2020-09-29 17:37:38 | MASTER-SAAO | (14h 27m 14.63s , -33d 55m 18.4s) | C | 60 | 18.2 | 45896 | 2020-09-29 17:37:38 | MASTER-SAAO | (14h 26m 14.28s , -33d 55m 24.6s) | C | 60 | 18.0 | 45976 | 2020-09-29 17:38:58 | MASTER-SAAO | (14h 28m 56.76s , -35d 56m 55.7s) | C | 60 | 18.4 | 45976 | 2020-09-29 17:38:58 | MASTER-SAAO | (14h 27m 54.81s , -35d 57m 01.7s) | C | 60 | 18.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.