scholarly journals A method for estimating the thermal regime of solar panels when performing angular turns of the Earth observation satellite

2019 ◽  
pp. 1-8
Author(s):  
Gennadii Borisovich Steganov ◽  
Dmitrii Leonidovich Kargu ◽  
Evgenii Nikolaevich Malenin ◽  
Andrei Valerievich Yanguzov
Keyword(s):  
Thermal Regime ◽  
Circular Orbit ◽  
Functional Method ◽  
Earth Observation ◽  
Heat Fluxes ◽  
Solar Panel ◽  
Solar Panels ◽  
The Earth ◽  
Mathematical Expressions ◽  
Earth Observation Satellite

The results of modeling the thermal operation of solar panels (PSB) of the Earth observation satellite (EOS) when moving in a circular orbit are presented. Modeling of the thermal regime is carried out for two groups of photovoltaic converters (FEP). FEPs are conventionally divided into groups, depending on the strength of the influence of different heat fluxes characteristic of the movement of the satellite in a circular orbit. Analytical expressions for the heat balance equation of the PSBs and the results of numerical calculations at the end of the active life (SAC) are given. In this work, methods of deduction, induction, analysis, modeling, formalization, experiment, as well as statistical method, system and structural-functional method were used. The presented model for calculating the temperature of the solar panel of the Earth observation satellite is a set of mathematical expressions that allow calculating temperature of any FEP within a particular solar panel and make adjustments to the plan of exploitation.

A Novel Lateral Deployment Mechanism for Segmented Mirror/Solar Panel of Space Telescope

2015 ◽  
Vol 04 (03n04) ◽  
pp. 1550006 ◽  
Author(s):  
Dignesh Thesiya ◽  
A. R. Srinivas ◽  
Piyush Shukla
Keyword(s):  
Model Validation ◽  
Volume Ratio ◽  
Solar Panel ◽  
Launch Vehicles ◽  
Solar Panels ◽  
Space Telescopes ◽  
High Definition ◽  
The Earth ◽  
Segmented Mirror ◽  
Strategy Design

Space telescopes require large aperture primary mirrors to capture High Definition (HD) ground image while orbiting around the Earth. Fairing Volume of launch vehicles is limited and thus the size of monolithic mirror is limited to fairing size and solar panels are arranged within a petal formation in order to provide a greater power to volume ratio. This generates need for deployable mirrors for space use. This brings out a method for designing new deployment mechanism for segmented mirror. Details of mechanism folding strategy, design of components, FE simulations, realization and Lab model validation results are discussed in order to demonstrate the design using prototype.

scholarly journals ESTIMATION OF THE ATTITUDE PERTURBANCE USING PARALLAX IMAGERY - APPLICATION TO ZY-3 SATELLITE

2015 ◽  
Vol II-3/W4 ◽  
pp. 279-283 ◽  
Author(s):  
Z. Ye ◽  
Y. Xu ◽  
F. Wang ◽  
S. Liu ◽  
X. Tang ◽  
...  
Keyword(s):  
Detection Method ◽  
Earth Observation ◽  
Multispectral Images ◽  
The Earth ◽  
Novel Approach ◽  
Earth Observation Satellite

The inflight stability of the earth observation satellite is a significant factor having an influence on the geometric performance of its imagery. The estimation of the attitude perturbance is therefore indispensable to spaceborne photogrammetry application. In this paper, an experiment using a short strip of multispectral images obtained from ZY-3 satellite is conducted. The detection method for attitude perturbance based on parallax observation is adopted, while a novel approach of estimating the attitude perturbance angles from the perturbance caused image displacements is also proposed and demonstrated. The estimated results indicate that the ZY-3 satellite was affected by considerable perturbances with distinctive frequencies during the flight of the investigated images, and attitude perturbances hava also undermined the geometric performance of the acquired imagery.

scholarly journals Light deflection Phenomenon Simulation and Calibration of the Earth-Observation Satellite

2021 ◽  
Vol 783 (1) ◽  
pp. 012140
Author(s):  
Jing Yu ◽  
Deyin Liang ◽  
Hongtao Gao ◽  
Longjiang Yu ◽  
Yufei Huang
Keyword(s):  
Earth Observation ◽  
Light Deflection ◽  
The Earth ◽  
Earth Observation Satellite

A Review on Machine Learning for Earth Observation Satellite Mission Planning

2021 ◽  
Vol 14 ◽  
Author(s):  
Zhiliang Li ◽  
Mingyong Jiang ◽  
Da Ran ◽  
Fengjie Zheng
Keyword(s):  
Machine Learning ◽  
Solution Process ◽  
Field Research ◽  
Earth Observation ◽  
Mission Planning ◽  
Planning Problem ◽  
Satellite Mission ◽  
The Earth ◽  
Integral Process ◽  
Earth Observation Satellite

: Mission planning is an integral process that enables earth observation missions and defines their success rate. This paper identifies key problems and opportunities on machine learning for earth observation satellite mission planning. Firstly, the description elements, classification methods, solution process and solution difficulties of the mission planning problem of earth observation satellite are described. Secondly, the current research status of machine learning for the earth observation satellite mission planning is summarized and analyzed. Finally, the problems of current research are analyzed, and the prospect of new field research is given in light of the development needs.

The cooperation between ESA and EU regarding the Earth observation

2006 ◽  
Author(s):  
Madel Carmen Muñoz Rodríguez ◽  
Juan Manuel de Faramiñán Gilbert
Keyword(s):  
Earth Observation ◽  
The Earth
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