V.Lipunov (Lomonosov MSU), R. Podesta (OAFA), H. Levato (ICATE), T.Pogrosheva, E. Gorbovskoy, N. Tiurina,  P. Balanutsa,  A. Kuznetsov, V. Kornilov,  V. Chazov, D. Vlasenko, V. Vladimirov, O. Gress, I.Gorbunov, A.Krylov (Lomonosov Moscow State University, SAI), C. Lopez, F. Podesta (Observatorio Astronomico Felix Aguilar San Juan University), C. Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio)
MASTER OT J154209.55-431742.2, ATLAS19eua