Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Orbit determination of the Lunar Reconnaissance Orbiter
Abstract We present the results on precision orbit determination from the radio science investigation of the Lunar Reconnaissance Orbiter (LRO) spacecraft. We describe the data, modeling and methods used to achieve position knowledge several times better than the required 50–100 m (in total position), over the period from 13 July 2009 to 31 January 2011. In addition to the near-continuous radiometric tracking data, we include altimetric data from the Lunar Orbiter Laser Altimeter (LOLA) in the form of crossover measurements, and show that they strongly improve the accuracy of the orbit reconstruction (total position overlap differences decrease from ~70 m to ~23 m). To refine the spacecraft trajectory further, we develop a lunar gravity field by combining the newly acquired LRO data with the historical data. The reprocessing of the spacecraft trajectory with that model shows significantly increased accuracy (~20 m with only the radiometric data, and ~14 m with the addition of the altimetric crossovers). LOLA topographic maps and calibration data from the Lunar Reconnaissance Orbiter Camera were used to supplement the results of the overlap analysis and demonstrate the trajectory accuracy.
Orbit determination of the Lunar Reconnaissance Orbiter
Abstract We present the results on precision orbit determination from the radio science investigation of the Lunar Reconnaissance Orbiter (LRO) spacecraft. We describe the data, modeling and methods used to achieve position knowledge several times better than the required 50–100 m (in total position), over the period from 13 July 2009 to 31 January 2011. In addition to the near-continuous radiometric tracking data, we include altimetric data from the Lunar Orbiter Laser Altimeter (LOLA) in the form of crossover measurements, and show that they strongly improve the accuracy of the orbit reconstruction (total position overlap differences decrease from ~70 m to ~23 m). To refine the spacecraft trajectory further, we develop a lunar gravity field by combining the newly acquired LRO data with the historical data. The reprocessing of the spacecraft trajectory with that model shows significantly increased accuracy (~20 m with only the radiometric data, and ~14 m with the addition of the altimetric crossovers). LOLA topographic maps and calibration data from the Lunar Reconnaissance Orbiter Camera were used to supplement the results of the overlap analysis and demonstrate the trajectory accuracy.
Orbit determination of the Lunar Reconnaissance Orbiter
Mazarico, Erwan (Autor:in) / Rowlands, D. D. (Autor:in) / Neumann, G. A. (Autor:in) / Smith, D. E. (Autor:in) / Torrence, M. H. (Autor:in) / Lemoine, F. G. (Autor:in) / Zuber, M. T. (Autor:in)
Journal of Geodesy ; 86
2011
Aufsatz (Zeitschrift)
Englisch
BKL:
38.73
Geodäsie
Orbit determination of the Lunar Reconnaissance Orbiter
| Online Contents | 2011
Precise orbits of the Lunar Reconnaissance Orbiter from radiometric tracking data
| Online Contents | 2018
Precise orbits of the Lunar Reconnaissance Orbiter from radiometric tracking data
| Online Contents | 2018