Calculation and Applied Research of Satellite Solar Radiation Pressure Torque

2013 ◽  
Vol 791-793 ◽  
pp. 1415-1418
Author(s):  
Xiao Peng Liu ◽  
Wei Wei Wang ◽  
Xiao Ni Chen

Satellite solar radiation pressure torque is one of the major long-term interference after the satellite finishes positioning and starts to working. However, there is no method to verify the calculation of solar radiation pressure torque. This paper is to analyze the in-orbit telemetry data of satellite DFH-3. Based on the results of data fitting and pressure torque calculation, the paper aims to test the accuracy of the calculation methods.

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Tae-Suk Bae ◽  
Chang-Ki Hong

The modeling of solar radiation pressure is the most important issue in precision GNSS orbit determination and is usually represented by constant and periodic terms in three orthogonal axes. Unfortunately, these parameters are generally correlated with each other due to overparameterization, and furthermore, the correlation does not remain constant throughout a long-term period. A total of 500 weeks of GPS daily solutions were estimated with the empirical CODE orbit model (ECOM) to cover various block types of satellites. The statistics of the postfit residuals were analyzed in this study, which shows the dominant annual variation of the correlations over time. There is no significant difference between eclipsing and noneclipsing satellites, and the frequency of the correlation exactly corresponds to the GPS draconitic year. Based on the residual analysis, the ECOM is the most appropriate for the Block IIR/IIR-M satellites but does not properly account for the behavior of either older Block IIA or newer IIF satellites. In addition, the daily mean residuals show a different pattern for satellite orbital planes. Therefore, the orbit model should be customized for the block types and orbital plane for better representation of multi-GNSS orbits.


2020 ◽  
Author(s):  
Heike Peter ◽  
Javier Berzosa ◽  
Jaime Fernández ◽  
Pierre Féménias

<p>The Copernicus POD (Precise Orbit Determination) Service is responsible for the generation of precise orbital products of the Copernicus Sentinel-1, -2, and -3 missions. In the near future, the processing setup of the Copernicus POD Service will be updated to state-of-the-art background models (geopotential, ocean tides and atmospheric gravity) and the use of single-receiver ambiguity fixing using CODE (Center for Orbit Determination in Europe) products.</p><p>In the current orbit parametrization of the six satellites, a solar radiation pressure coefficient is estimated for each daily arc. To provide long-term stability, in particular for the time series of the altimeter Sentinel-3 satellites, it would be preferable to use a constant solar radiation pressure coefficient in the processing. A reprocessing based on the updated models and set-up will be used to compute daily estimates of the solar radiation pressure coefficient for all satellites. The analysis may reveal satellite model deficiencies and might help to improve the satellite macro-models.</p><p>Mean values of the solar radiation pressure coefficients from the long-term series can be used on future operational processing. At the same time a refinement of the selection of the estimated orbit parameters might also be done if necessary, in particular the empirical accelerations. Impact on the orbit determination results and on the quality of the orbits is presented for all six satellites.</p>


Author(s):  
Rikushi KATO ◽  
Masanori MATSUSHITA ◽  
Hideyuki TAKAHASHI ◽  
Osamu MORI ◽  
Nobukatsu OKUIZUMI ◽  
...  

Science ◽  
1960 ◽  
Vol 131 (3404) ◽  
pp. 920-921 ◽  
Author(s):  
R. W. Parkinson ◽  
H. M. Jones ◽  
I. I. Shapiro

GPS Solutions ◽  
1999 ◽  
Vol 2 (3) ◽  
pp. 50-62 ◽  
Author(s):  
T. A. Springer ◽  
G. Beutler ◽  
M. Rothacher

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