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Registration Number

0222U002170, 0121U111264 , R & D reports

Title

Estimation of accuracy of measurement of angular coordinates of low-orbit artificial satellites of the Earth at their observation by optical means of NTSUVKZ

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Head

Briukhovetskyi Oleksandr B.,

Registration Date

10-02-2022

Organization

National Space Facilities Control And Test Center

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 GDR report: 29 pages, 11 figures, 4 tables, 3 sources, 3 appendices. The object of study is the process of obtaining measurements of the positions of artificial satellites of the Earth in low orbits by optical means. The purpose of the work is to study the influence of equipment (recording devices) and modes of optical observations to obtain angular coordinates on the accuracy of determining the orbital parameters of the satellite in low orbits. Research method - methods of experiment planning, probability theory and mathematical statistics. Measurement accuracy analysis was performed for 21 satellites in low orbits based on observations made by two telescopes of the National Center for Space Management and Testing (SPC and SOES-2) (each telescope for two nights of observations). The random component of measurement errors was analyzed. It was obtained after filtering the systematic component by removing the polynomial trend from the values ​​of the differences between the measured satellite position and the forecast of the position under the initial conditions at the time of measurement. The analysis showed that more than two thirds of the measurements have a random error of less than the scale of the image, which is a good result. It could have been better, but this was hindered by a large number of anomalous measurements. This is especially true of KOS observations, where they were present in almost every series of satellite observations. A possible reason for these anomalous measurements is the periodic incorrect reference of the time of creation of frames by special registration software.

Product Description

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Dementyev Timur O.
kozhuthov Oleksandr M

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2022-03-09