DOI: https://doi.org/10.18524/1810-4215.2019.32.183899

SIMULATION OF THE ORBITING SPACECRAFT TO ANALYSIS AND UNDERSTAND THEIR ROTATION BASED ON PHOTOMETRY

N. I. Koshkin, S. Melikyants, E. Korobeinikova, L. Shakun, S. Strakhova, V. Kashuba, Ya. Romanyuk, S. Terpan

Анотація


Analysis of the photometric information
allows to determine the parameters of spacecraft rotation.
We will consider the light curves of a rotating satellite.
Smooth changes in brightness, which are caused by diffuse
scattering of sunlight, are characterized by the amplitude,
quantity, shape and asymmetry of brightness variation
during the rotation period of the body. In addition, the so-
called “specular” flashes of light of very large amplitude
are present on light curves. By analyzing the observed light
curves of the inactive satellites Topex/Poseidon and Sich-
2, the determination of pole orientation these objects in
space is demonstrated. To interpret the light curve's
contained information, we are planning to creat optical-
geometrical models of this satellite and simulated
geometrical conditions by its orbit passages. Further
comparison of the model and observed light curves should
allow us to confirm the correctness of the satellite attitude
determination. For the simulation, we used the MaxScript
programming language, which allows to create a satellite
model, and simulate the optical-geometric conditions of its
passage, including the complex rotation of the spacecraft.


Ключові слова


Earth's artificial satellite; space object; photometry; light curve; rotation period

Повний текст:

PDF (English)

Посилання


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