Odessa-Mayaki observatory (583) has discovered new asteroid 2017 BC94 and re-discovered 2017 AB8 asteroid

With help of free version of the CoLiTec software 2016 – Summer (1.6.6.1) the observing station Mayaki (583 – Odessa-Mayaki) of Astronomical observatory of I.I. Mechnikov Odessa National University in early 2017 has discovered new asteroid 2017 BC94 and re-discovered 2017 AB8 asteroid.

The 2014 OD380 asteroid was firstly observed by Pan-STARRS 1 observatory, Haleakala in 2014. Afterwards there where several successful unrelated observations of this asteroid in 2015, after each of which the object was lost due to the insufficient number and period of observation for the calculation of search ephemeris.

Observing station Mayaki (583 - Odessa-Mayaki) of Astronomical observatory of I.I. Mechnikov Odessa National University Observing station Mayaki (583 - Odessa-Mayaki) of Astronomical observatory of I.I. Mechnikov Odessa National University

On January 3/4, 2017 by two staff researchers of Astronomical observatory of I.I.Mechnikov Odessa National University V.I. Kashuba and V.V.Troyankyi discovered an unknown object. Using these observations, the orbital elements of object was determined and object was re-found again on January 26, 2017. The IAU Minor Planets Center was named this object 2017 AB8 (2014 OD380).

Regular positional observations of celestial bodies are carried out on the OMT-800 telescope since 2012. The technical characteristics of the telescope (D = 0.8 m, F = 2.134 m) allow to obtain with the FLI ML09000 CCD-camera (3056 × 3056 pixels, field of view of 1.0° × 1.0°) images of objects brighter than 19 magnitude. This provides an opportunity to solve various problems of fundamental and applied astronomy.

Algorithms of addition of a series of frames and a special technology for weak signals detecting based on median filtering and Fourier analysis implemented in CoLiTec made it possible to achieve an increase limiting magnitude of the OMT-800 telescope to 21 magnitudes only through mathematical images processing. Thus, using of the CoLiTec software significantly expanded the range of telescope capabilities in detecting extremely faint asteroids and comets.