A METHOD OF COMBINING NON-PRECISION MEASUREMENTS OF THE MANEUVERING SATELLITES MOTION PARAMETERS IN ORDER TO ACHIEVE THE BEST ACCURACY AND RELIABILITY OF THEIR FORECAST

Abstract

Background. The growing number of man-made space objects in space, the decrease in their size, the launch of multi-satellite space systems into near-earth orbits and the increasing use of maneuvering satellites negatively affect the implementation of space activities due to the increasing likelihood of collisions in space. Therefore, an urgent scientific task is to study ways to improve the information security of space activities, taking into account new challenges, with the aim of preventing orbital incidents. Materials and methods. The solution to the problem is proposed by improving the quality of population control of the working and intermediate orbits of multi-satellite space systems with high-precision determination of the current navigation parameters (CNP) of each observed satellite. For this purpose, a method for combining significantly uneven measurements obtained from various means of observation has been developed, which can be used to compile and maintain a catalog of potentially dangerous objects in space. Results. The task of combining measurements and building a CNP forecast for each satellite is reduced to the implementation of the following decisive method: 1) when detecting deviations in the satellite's CNP, indicating that it has performed an orbital maneuver, data from recent CNP measurements containing current satellite motion parameters, regardless of their accuracy, are used to maintain a catalog and subsequent CNP forecast; 2) in the presence of non-precision measurements and satellite CNP forecast data, the errors of which exceed the established threshold (differ by more than an order of magnitude), more accurate data are used for the subsequent CNP forecast; 3) in the presence of measurements or data from the satellite's CNP forecast, the errors of which differ by less than an order of magnitude, their joint processing is carried out to maintain the catalog and subsequent CNP forecast. Conclusions. The approach proposed in the framework of the article makes it possible to maintain a catalog and subsequent CNP forecast when detecting a satellite maneuver with an application for the use of high-precision measuring instruments, as well as exclude «rough» data from processing when identifying the reference orbit (absence of an orbital maneuver) with low-precision measuring instruments or outdated satellite CNP forecast data.

Keywords

• artificial earth satellite
• space debris object
• optoelectronic system
• quantum optical system
• long-range detection radar