LASSO, Two-Way and GPS Time Comparisons: A (Very) Preliminary Status Report
Abstract
This very preliminary report briefly presents the first results on the time transfer experiments between TUG (Graz, Austria) and OCA (Grasse, France) using common view GPS, and two-way stations at both sites. The present data, providing a rms of the clock offsets of 2 to 3 nanoseconds for a three months period, have to be further analysed before any conclusions on the respective precision and accuracy of these techniques can be drawn. Two years after its start, the LASSO experiment is finally giving its first results at TUG and OCA. The first analysis of three common sessions permitted us to conclude that the LASSO package on board of Meteosat P2 is working satisfactorily, and that time transfer using this method should provide clock offsets at better than 1 nanosecond precision, and clock rates at better then 10(-12) s/s in a 5 to 10 minutes session. A new method for extracting this information from the raw data sent by LASSO should enhance the performances of this experiment, exploiting the stability of the on-board oscillator.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1990
- Accession Number
- ADA520320
Entities
People
- A. Clements
- Anthony J. Davis
- C. Veillet
- D. Feraudy
- D. Kirchner
- F. Baumont
- G. Kirchner
- H. Ressler
- J. F. Mangin
- J. Gaignebet
- J. Jespersen
- J. L. Hatat
- J. M. Torre
- M. Lombardi
- P. Grudler
- P. J. Wheeler
- S. Fassl
- W. Hanson
- W. J. Klepczynski
- Warren B. Powell
Organizations
- United States Naval Observatory