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One short OT and two PSN detection

ATel #3854; V. Lipunov, P. Balanutsa, N. Tiurina, E. Gorbovskoy, V. Kornilov, A. Belinski, N. Shatskiy, V. Chazov, A. Kuznetsov, D. Zimnukhov, D. Gareeva (Moscow State University, SAI) V. Krushinsky, I. Zalozhnih, A. Popov (Ural State University) K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress (Irkutsk State University) A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk solar station of the Pulkovo observatory RAS) V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov (Blagoveshchensk Educational University) V. Shumkov, S. Shurpakov (MASTER team members)
on 8 Jan 2012; 15:20 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

Subjects: Optical, Cataclysmic Variable, Supernovae, Transient

MASTER032853.57+284045.8 - PSN

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 03h 28m 53.57s +28d 40m 45.8s on 2012-01-08.53679 UT. The OT magnitude in I filter is 15.3m (limit 17.5m)

The OT is seen in 5 images. There is no minor planet at this place. There is non star object the GSC 2.2 Catalogue N333021120583 (R=17.8mag) at this place. We have reference image without OT on 2011-11-29.61529 UT with magnitude limit in 'V' filter 18.0m

Spectral observations are required.

MASTER135827.77+135630.0 -Short OT

MASTER-Tunka auto-detection system discovered an OT source at (RA, Dec) = 13h 58m 27.77s , +13d 56m 30s.0 on 2012-01-03 22:59:10.076 UT by double MASTER II telescope with 180 sec exposition. The OT unfiltered magnitude is 18.8 m (The images limit is 20.5m).

We have several images, where the object is not seen. Last of them are ~40 minutes before. They all have limit ~19.8 mag.

The OT is seen on two synchronous images. There are no minor planet or star at this place. There are no GRB events from Swift, Fermi, INTEGRAL, Wind-KONUS at this time.

Follow up deep imaging are required.

MASTER140859.07+255012.0 - ?

MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 14h 08m 59.07s +25d 50m 12.0s on 2012-01-04.94060 UT. The OT unfiltered magnitude is 17.m (limit 19.5m)

The OT is seen in 2 images. There is no minor planet and any star at this place.

We have reference image without OT on 2011-04-25.74535 UT with unfiltered magnitude limit 20.0m.

Spectral observations are required.

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