Аннотация:MASTER Global robotic net (http://observ.pereplet.ru Lipunov et al.,2010,Advances in Astronomy,2010,30L) started EP 240408A (Hu et al. #GCN 36053, Triggertime= 2024-04-08 17:56:30UT, Notice=2024-04-09T10:31:03, Center R.A.,Dec. = 158.851 -35.747) optical (unfiltered) observation by MASTER-SAAO robotic telescope, located in South Africa, at 2024-04-09 17:08:35UT . There is no optical transient with mlim=19.5(unfiltered) at Swift XRT ( #GCN 36057 158.851 deg, DEC = -35.747 (10:35:24.24 -35:44:49.20) ) and at GROND positions (Rau et al. GCN 36059 10:35:22.44 -35:44:08.2) åisebox-0.5ex~23h after trigger time Observation started at 55deg altitude. Sun altitude was 11 deg. Reduction will be continued.