Archives for Ноябрь 2011

The recently discovered (using ColiTec software) asteroid 2011 RC17 turned to be a truly interesting one. It’s all about its orbit’s parameters here: the fact is that it’s located around plane of the ecliptic (it’s inclination is 11 degrees), it’s perihelion distance is smaller than the semimajor axis of Jupiter’s orbit and its aphelion distance is bigger than the the semimajor axis of Saturn’s orbit. There are only 10 discovered objects having resembling and it happens no more than twice a year! You could find a list of these objects with their orbits’ parameters on the following picture:

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During night sky survey (September 2-3) ISON-NM observer Leonid Elenin discovered (preliminary frames’ analysis was made by CoLiTec program) a new indeterminate object with a very low NEO-raiting. But the discovery was confirmed only September 23, October, 18 after object’s observation by Mount Lemmon Survey (G96) and Spacewatch (691). After additional November measurements object was given a provisional designation 2011 RC17 and released the Minor Planet Electronic Circular MPEC 2011-W37, according to which aphelion of this object is located further from the Sun than perihelion of Saturn; and perihelion is nearer the Sun than the perihelion of Jupiter. For the moment, the quantity of similar discoveries (objects with such orbits) is very limited (no more than a hundred). According to the NASA JPL criteria the present object represents a Centaur, but the MPC considers it to be in the category of «other unusual objects». We sincerely congratulate Leonid on the discovery of a very distant object and wish him many more interesting discoveries!

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MPC monthly circular MPC 76679 – 77124. Observation results of observatories using CoLiTec software (October 12, 2011 – November 10, 2011):

Discovery of 154 asteroids, that makes 769 asteroids’ discoveries and two comet discoveries with CoLiTec software application.

V. E. SAVANEVICH, A. B. BRYUKHOVETSKIY, A. M. KOZHUKHOV, V. P. VLASENKO

Estimation of asteroid’s coordinates on the discrete image/V. E. Savanevich, A. B. Bryukhovetskiy, A. M. Kozhukhov, V P. Vlasenko // Systems of arms and military equipment. – Kharkiv: KHUAF, 2010. Vol. 3(23). P. 154—159.

The method of CCD frames stacking with signal accumulation from a faint asteroid with nonzero visual motion is worked out. The method is based on the CCD frames stacking with shift along the possible trajectories of asteroid’s motion. The feature of method is option of fractional shift (in pixels) between stacking frames. Correct frames stacking with a fractional shift is provided by using the areal approach offered by authors. The method has used by authors in developed system of automatic online new asteroids detection and known asteroids tracking.

The projects updating:

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