Hostname: page-component-7bb8b95d7b-wpx69 Total loading time: 0 Render date: 2024-09-12T09:20:12.263Z Has data issue: false hasContentIssue false
  • English
  • Français

Determination of Coordinates for the Orroral Lunar Ranging Station

Published online by Cambridge University Press:  12 April 2016

P. Morgan  and
R.W. King
P. Morgan
Affiliation:
Massachusetts Institute of Technology Cambridge, MA 02139U.S.A.
R.W. King
Affiliation:
Massachusetts Institute of Technology Cambridge, MA 02139U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Using models of the Earth-Moon system developed from analysis of 10 years of laser ranging observations from the McDonald Observatory, we have analyzed observations obtained by the Orroral Lunar Ranging Station since April 1978. Normal point residuals from many of the observations performed before April 1980 using a 20 ns, mi tiple-mode laser pulse are discreetly spaced, as multiples of 6 ns, and may have been corrupted by variations in pulse shape. Further evaluation is required before these observations are used in scientific analyses. Observations performed during the MERIT Short Campaign (August - October 1980) using a 6 ns, single-mode pulse are apparently reliable. Using 27 single photoelectron events, obtained on 7 nights during this period, we have estimated the coordinates of Orroral, with respect to McDonald, with uncertainties of 1-2 m in cylindrical radius and longitude and 5-10 m in z-axis distance.

Type
Part IV
Information
International Astronomical Union Colloquium , Volume 63: High-Precision Earth Rotation and Earth-Moon Dynamics , May 1981 , pp. 305 - 311
Copyright
Copyright © Reidel 1982

References

Ash, M.E.: 1972, Determination of Satellite orbits, Tech. Note 1972-5, Lincoln Lab.,Mass.Inst.of Technol., Lexington.Google Scholar
Calarne, O.: 1979, Earth Rotation by Lunar Distances (EROLD), Preliminary results from the first lunar laser observations in Orroral (Australia), Annual Report for 1978, Bureau International de l’Heure, Paris, p. D–49.Google Scholar
Cappallo, R.J., Counselman, C.C., King, R.W., and Shapiro, I.I.: 1981, Tidal Dissipation in the Moon, J.Geophys.Res.,in press.CrossRefGoogle Scholar
Hothem, L;: 1979, Determination of Accuracy, Orientation and Scale of Satellite Doppler Point-Positioning Coordinates, Proceedings of the Second International Symposium on Satellite Doppler Positioning, p. 609–630, University of Texas, Austin.Google Scholar
Langley, R.B., King, R.W., and Shapiro, I.I.,:1981, Earth Rotation from Lunar Laser Ranging, submitted to J.Geophys.Res.Google Scholar
Roelse, A.: 1981, personal communication.Google Scholar
Shelus, P.: 1981, personal communication.Google Scholar