Аннотация:AT2020ncx During MASTER inspection (Lipunov et al. GCN #27976) of Fermi trigger 614103490 (short GRB, see MASTER coverage map) MASTER- OAFA auto-detection system ( Lipunov et al., “MASTER Global Robotic Net”, Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 09h 55m 02.14s -61d 33m 25.7s on 2020-06-18.03112 UT. The OT unfiltered magnitude is 15.7m (mlim=17.2).