//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28866 SUBJECT: GRB 201108A: Fermi GBM Final Real-time Localization DATE: 20/11/08 15:38:43 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 15:28:23 UT on 8 Nov 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201108A (trigger 626542108.26729 / 201108645). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 289.0, Dec = 35.9 (J2000 degrees, equivalent to J2000 19h 15m, 35d 53'), with a statistical uncertainty of 9.7 degrees. The angle from the Fermi LAT boresight is 66.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201108645/quicklook/glg_skymap_all_bn201108645.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/bn201108645/quicklook/glg_healpix_all_bn201108645.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201108645/quicklook/glg_lc_medres34_bn201108645.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 28867 SUBJECT: Fermi GRB 201108A: Global MASTER-Net observations report DATE: 20/11/08 15:45:12 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 201108A ( Fermi GBM team, GCN 28866) errorbox 359 sec after notice time and 389 sec after trigger time at 2020-11-08 15:34:52 UT, with upper limit up to 16.7 mag. Observations started at twilight. The observations began at zenith distance = 17 deg. The sun altitude is -13.0 deg. The galactic latitude b = 11 deg., longitude l = 68 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1477785 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 420 | 2020-11-08 15:34:52 | MASTER-Tavrida | (19h 53m 10.99s , +33d 59m 17.0s) | C | 60 | 16.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.