ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2023, Vol. 20, No. 4, pp. 81-88

Estimation of the angular velocity of rotation of the Aist-2D small spacecraft for remote sensing of the Earth

E.S. Khnyryova 1 
1 Samara National Research University, Samara, Russia
Accepted: 04.08.2023
DOI: 10.21046/2070-7401-2023-20-4-81-88
In this paper, a study is made of rotational motion of a small spacecraft for remote sensing of the Earth called Aist-2D under the influence of disturbing factors, according to the data of onboard measurements. The quality of performance of target tasks by a small spacecraft depends on the fulfillment of the requirements for angular velocity. Various modes of operation of a small spacecraft have been studied. In this paper, an estimate of the angular velocity of rotational motion of Aist-2D around the center of mass in the modes of orientation and reorientation is obtained. Measurements of the components of the Earth’s magnetic field induction vector with the help of onboard magnetometers were used for the evaluation. Dependences of the components of the angular velocity vector on time are constructed in the orientation and reorientation modes. An analysis of these dependences was carried out in order to meet the requirements for angular velocity in order to succeed in fulfilling Earth remote sensing tasks. The results obtained fundamentally coincide with the data of other authors. They can be used in the analysis of the requirements imposed on the operation of the motion control system of a small spacecraft, as well as parameters and composition of the executive bodies of this system for high-quality and efficient performance of Earth remote sensing tasks.
Keywords: small spacecraft for remote sensing of the Earth, rotational motion around the center of mass, angular velocity of rotational motion, restoration of a continuous signal
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