MASTER: 2 outbursts with ampl>4.2m

ATel #13490; V. Shumkov, T. Pogrosheva, V. Lipunov, E. Gorbovskoy, V. Kornilov, P. Balanutsa, N. Tyurina, A. Kuznetsov, F. Balakin, K. Zhirkov, V. Vladimirov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, D. Kuvshinov (Lomonosov Moscow State University, SAI, Physics Department), O. A. Gres, N. M. Budnev, O. Ershova (Irkutsk State University, API), R. Podesta, C. Lopez, F. Podesta, C. Francile(Observatorio Astronomico Felix Aguilar OAFA), H. Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias), D. Buckley(South African Astronomical Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State University) A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory)
on 16 Feb 2020; 23:31 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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MASTER OT J001829.62+430208.4 discovery - ampl>4.2

AT2020csp

MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 00h 18m 29.62s +43d 02m 08.4s on 2020-02-15.82226 UT.
The OT unfiltered magnitude is 17.1m (mlim=19.1). The OT is seen in 4 images. There is also m_OT=16.8 on 2020-02-14 17:40:27UT.
We have reference image on 2019-05-31 23:11:04 without OT with mlim=19.6, and on 2015-12-10.98446 UT with unfiltered mlim= 21.2m and marginally seen OT with m~21, that gives >4.2mag of current outburst amplitude.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/001829.62430208.4.png

MASTER OT J102754.39-665549.0 discovery - ampl>4.3m

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 10h 27m 54.39s -66d 55m 49.0s on 2020-02-15.24476 UT.
The OT unfiltered magnitude is 17.7m (mlim=18.3).
The OT is seen in 5 images. There is no minor planet at this place.
We have reference image on 2017-03-22.19793 UT with 'unfiltered m_OT= 19.1m.
22mPOSS limit in history gives us >4.3 of current outburst amplitude
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/102754.39-665549.0.png

MASTER Global Robotic Net