Some Features of a Small Spacecraft Application as a Technique for the World Ocean Exploration

International science and technology conference "Earth science"

Sedelnikov, A.V.^1 ; Khnyryova, E.S.^2 ; Ivashova, T.A.^3

Department of Space Engineering, Samara National Research University, Moskovskoye shosse 34, Samara

443086, Russia^1

Department of Further Mathematics, Samara National Research University, Moskovskoye shosse 34, Samara

443086, Russia^2

Faculty of Electronics and Instrument Engineering, Samara National Research University, Moskovskoye shosse 34, Samara

443086, Russia^3

关键词: Animal migration;    Environmental conditions;    High quality information;    Orbital motions;    Qualitative data;    Rotational motion;    Small spacecrafts;    Telemetric data;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/272/3/032045/pdf
DOI  :  10.1088/1755-1315/272/3/032045

来源: IOP

【 摘 要 】

Nowadays, space technique is increasingly being used to solve various problems that are not directly related to outer space. One of such problem is the World Ocean exploration by means of Earth's remote sensing. Middle-class spacecrafts for Earth's remote sensing are well known, e. g. Resource-P, Spot 8, etc. They have complete attitude control systems and control systems of orbital motion. Using these spacecrafts, it is possible to obtain high-quality information about sea currents, sea animal migrations, environmental conditions, etc. However, such projects are expensive and require a long period of implementation. For this reason, small spacecrafts are widely used now. In contrast with the middle-class spacecrafts, they have a variety of features. The small spacecraft mass does not allow to place a complete attitude control systems and control systems of orbital motion on its board. On the other hand, the small spacecraft moving is little-known. The main perturbing factors for the medium-class spacecraft are aerodynamic and gravitational. The main perturbing factor for the small spacecraft is the magnetic moment. Small spacecraft orbital moving significantly affects on the quality of transmitted to Earth telemetric data. It also affects on the reliability of data about the World Ocean obtained from the small spacecraft. Therefore, the analysis of the small spacecraft rotational motion for Earth's remote sensing is an important and urgent task. Its solution will allow to obtain qualitative data and to use the small spacecraft for the World Ocean exploration.