TSU astronomers are studying the evolution of space debris orbits

2020-09-11

Evgeniya Blinkova, a postgraduate student and researcher at the Laboratory of Computer Modeling and Machine Analysis of Astronomical Data of the TSU Faculty of Physics, studies the dynamics of an array of uncontrolled objects moving in near-earth space. The position of such objects is important to know when launching any new spacecraft into space.

All objects that have already completed their term are called uncontrolled. These are predominantly old satellites, but there are also large fragments of flying devices. All this is space debris. It is most often found in the LEO and LEO-MEO regions of near-Earth space - from the Earth's atmosphere to the orbits of the GLONASS and GPS navigation systems.

Objects in this region of outer space have very complex dynamics: they are subject to the action of the Earth's gravitational field, the attraction of the moon and the sun, and the influence of light pressure and various resonances associated with both the Earth's rotation speed and the precession frequencies of the Earth's and moon's orbits. TSU scientists have already performed theoretical studies of the dynamics. Now the knowledge will be applied to real objects - Evgenia Blinkova will determine how they move and redistribute in space over time.

Read more: http://en.tsu.ru/news/tsu-astronomers-are-studying-the-evolution-of-space-debris-orbits/