Data & Products

Currently, ILRS data products include Normal Points (NP) data, predictions, Full-Rate (FR) data, site positions and velocities. Click on the hyperlinks above to gain access to the acutal data files, data format(s), and associated procedures.

FR data is not a required station product, but sometimes is required for specific needs (e.g., center-of-mass analysis, retro-reflector experiments, collocation analysis, etc.). FR data should be available for at least one year from the stations upon request.

Related Links:

Data Formats and Procedures WG Activities
Analysis WG Activities
Official ILRS products description
Rapid LEO Predictions WG Activities
NP tracking statistics (CDDIS weekly report and interactive queries by station, by station and date, by satellite, and by satellite and date)
ILRS Data Product Levels Strawman proposed by Steve Klosko at the 1st ILRS meeting, modeled after the Committee on Data Management, Archiving, and Computing definitions
Global SLR Data Volume Trend (1988-1998)
Station Data Anomalies (range and time biases, pressure corrections, eccentricities updates, etc.)

NOTICE: It is important that you acknowledge the ILRS in your papers and presentations that rely on SLR and results. Please reference the following citation:

Pearlman, M.R., Degnan, J.J., and Bosworth, J.M., "The International Laser Ranging Service", Advances in Space Research, Vol. 30, No. 2, pp. 135-143, July 2002, DOI:10.1016/S0273-1177(02)00277-6.

Furthermore, please include SLR as a keyword in your papers. The SLR community relies on these acknowledgements and references to strengthen its requests for continued support from its funding organizations. The Central Bureau asks that you provide a link to and/or bibliographic reference of any SLR/LLR-related papers or presentations.

Responsible Government Official: Carey Noll
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