<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The work contains the results of research of the simulated GOCE satellite orbit. For the 30-day orbit determination the Cowell numerical integration of the eighth order was used and the geopotential was described by means of the EGM96 model. The selected accelerations and the Keplerian elements were computed along this orbit. These accelerations included the satellite accelerations due to: the geopotential, the Earth tides and the ocean tides (the radial component for both), the gravitation of the Moon, the gravitation of the Sun, the gravitation of the Venus and the relativity effects.The computed accelerations and Keplerian elements were treated as the input data for the DFT algorithm (Discrete Fourier Transform) to determine their spectral characteristics, i.e. the amplitude power spectral densities (PSD). Additionally, the averages and standard deviations were obtained for the aforementioned accelerations and Keplerian elements.The numerous periodic components were identified. The characteristic resonances with the satellite orbital period, with the Earth's rotation period and with the Moon's synodic period were described.</abstract>

The work contains the results of research of the simulated GOCE satellite orbit. For the 30-day orbit determination the Cowell numerical integration of the eighth order was used and the geopotential was described by means of the EGM96 model. The selected accelerations and the Keplerian elements were computed along this orbit. These accelerations included the satellite accelerations due to: the geopotential, the Earth tides and the ocean tides (the radial component for both), the gravitation of the Moon, the gravitation of the Sun, the gravitation of the Venus and the relativity effects.The computed accelerations and Keplerian elements were treated as the input data for the DFT algorithm (Discrete Fourier Transform) to determine their spectral characteristics, i.e. the amplitude power spectral densities (PSD). Additionally, the averages and standard deviations were obtained for the aforementioned accelerations and Keplerian elements.The numerous periodic components were identified. The characteristic resonances with the satellite orbital period, with the Earth's rotation period and with the Moon's synodic period were described.

Spectral Analysis of the Selected Accelerations and Orbital Elements for the Goce Satellite Orbit

Institute of Geodesy, University of Warmia and Mazury, ul. Oczapowskiego 1, 10-950 Olsztyn, Poland

Artificial Satellites

The work contains the results of research of the simulated GOCE satellite orbit. For the 30-day orbit determination the Cowell numerical integration of the...

Spectral Analysis of the Selected Accelerations and Orbital Elements for the Goce Satellite Orbit

Publié en ligne: 21 juil. 2009

Pages: 109 - 127

DOI: https://doi.org/10.2478/v10018-009-0010-y

Mots clés
GOCE satellite orbit, satellite accelerations, orbital elements, Fourier transform

This content is open access.

Spectral Analysis of the Selected Accelerations and Orbital Elements for the Goce Satellite Orbit

Publié en ligne: 21 juil. 2009

Pages: 109 - 127

DOI: https://doi.org/10.2478/v10018-009-0010-y

Mots clésGOCE satellite orbit, satellite accelerations, orbital elements, Fourier transform

This content is open access.

Mots clés
GOCE satellite orbit, satellite accelerations, orbital elements, Fourier transform