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Radiation Pressure, Along-Track Acceleration and Gravity Variations from Lageos 1 and Lageos 2 Slr Data Processing for the Period 1984.3 - 2012.0

Yavor Chapanov; Ivan Georgiev
Radiation Pressure, Along-Track Acceleration and Gravity Variations from Lageos 1 and Lageos 2 Slr Data Processing for the Period 1984.3 - 2012.0
ЦБ II 544

Детайли

Източник
Годишник на Университета по архитектура, строителство и геодезия - УАСГ
Издателство
УАСГ
Местоиздаване
София
Година на издаване
2018
Пор.№
бр. 9
Страници
с. 45 - 55
Том
51
Ключови думи
SLR, gravity coefficients, time series analysis, solar activity
ISSN
1310-814X
Отрасъл
Общ отдел. Наука. Библ. дело. Енциклопедии
Забележка
Т. 51. Бр. 9. Геодезия. Резюме на англ. ез.
Анотация
"The laser ranging data of geodynamic satellites Lageos 1 from the period April 1984 - December 2011 and Lageos 2 from the period January 1993 - December 2011 are processed and analyzed by program SLRP (Satellite Laser Ranging Processor), version 4.2, developed in the National Institute of Geophysics, Geodesy and Geography (NIGGG). The estimated unknowns are 46180, and 740 of them are global parameters. They are coordinates of 113 stations; velocities of 98 of them; Love and Shida numbers; geogravity constant GM, selected set of gravity coefficients and part of oceanic tides. The other parameters are monthly estimates for the state vector of the satellite motion, range biases and the clock correction of tracking stations. The coefficients of the solar radiation pressure and the along-track acceleration are estimated per each half month. The polar motion coordinates and Universal Time are estimated daily. Some of the important time series of radiation pressure, along-track acceleration, zonal gravity coefficients and geogravity constant are presented. The time variations of these parameters are determined by harmonic analysis, based on the Partial Fourier Approximation. Some of these variations with periods below 10 years have good agreement with the corresponding cycles of solar indices."
Системен №
5419

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