MASTER prediscovery optical counterpart of SRGt J071522.1-191609 observations
ATel #13672; K. Zhirkov, V. Lipunov, E. Gorbovskoy, V. Kornilov, N. Tiurina, (Lomonosov MSU), N. M. Budnev, O. Ershova (ISU, API), V. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk ESU) , A. Tlatov, D. Dormidontov(Kislovodsk Solar Station of the Pulkovo Observatory), R. Rebolo, M. Serra, N. Lodiu (IAC), O. Gress, P. Balanutsa, I. Gorbunov, A. Kuznetsov, V. Vladimirov, D. Vlasenko, D. Zimnukhov, D. Cheryasov, V. Senik, A. Pozdnyakov, A. Chasovnikov, V. Grinshpun, E. Minkina(Lomonosov MSU),
on 26 Apr 2020; 12:05 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Neutron Star, Soft Gamma-ray Repeater, Magnetar
MASTER Global Robotic Net ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L)
observed the field of SRGt J071522.1-191609 (Gokus et al. ATel #13657)about hundred times since 2009 without OT.
RA, DEC = 07 15 22.03 -19 16 05.2
There is optical source at this position ( ATel #13669, #13663, #13661) with automatic unfiltered m_OT~17.9 at on 2019-01-18 17:37 made during MASTER inspection of
Fermi trigger 56940784 ) with automatic unfiltered m_OT~17.9
The reduction will be continued.
List of Optical Transients discovered by MASTER
Global MASTER Robotic Net