Journal of Geodesy

, Volume 86, Issue 3, pp 193–207

Orbit determination of the Lunar Reconnaissance Orbiter

  • Erwan Mazarico
  • D. D. Rowlands
  • G. A. Neumann
  • D. E. Smith
  • M. H. Torrence
  • F. G. Lemoine
  • M. T. Zuber
Original Article

DOI: 10.1007/s00190-011-0509-4

Cite this article as:
Mazarico, E., Rowlands, D.D., Neumann, G.A. et al. J Geod (2012) 86: 193. doi:10.1007/s00190-011-0509-4

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.

Keywords

Moon Orbit determination Gravity Altimetric crossover Geodesy 

Supplementary material

190_2011_509_MOESM1_ESM.eps (6.8 mb)
ESM 1 (PDF 6967 kb)
190_2011_509_MOESM2_ESM.eps (718 kb)
ESM 2 (EPS 719 kb)
190_2011_509_MOESM3_ESM.eps (686 kb)
ESM 3 (EPS 687 kb)
190_2011_509_MOESM4_ESM.eps (674 kb)
ESM 4 (EPS 675 kb)
190_2011_509_MOESM5_ESM.eps (1.4 mb)
ESM 5 (EPS 1397 kb)
190_2011_509_MOESM6_ESM.eps (731 kb)
ESM 6 (EPS 731 kb)
190_2011_509_MOESM7_ESM.eps (714 kb)
ESM 7 (EPS 714 kb)
190_2011_509_MOESM8_ESM.eps (527 kb)
ESM 8 (EPS 527 kb)
190_2011_509_MOESM9_ESM.eps (508 kb)
ESM 9 (EPS 508 kb)
190_2011_509_MOESM10_ESM.eps (507 kb)
ESM 10 (EPS 507 kb)

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Erwan Mazarico
    • 1
    • 2
  • D. D. Rowlands
    • 2
  • G. A. Neumann
    • 2
  • D. E. Smith
    • 1
    • 2
  • M. H. Torrence
    • 2
    • 3
  • F. G. Lemoine
    • 2
  • M. T. Zuber
    • 1
  1. 1.Massachusetts Institute of TechnologyCambridgeUSA
  2. 2.NASA Goddard Space Flight CenterPlanetary Geodynamics LaboratoryGreenbeltUSA
  3. 3.S.G.T. Inc.GreenbeltUSA