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ILRS Charter - September, 1998

The ILRS collects, merges, evaluates, analyzes, archives and distributes Satellite Laser Ranging (SLR) and Lunar Laser Ranging (LLR) observation datasets of sufficient accuracy to satisfy the objectives of a wide range of scientific, engineering, and operational applications and experimentation. These data sets are used by the ILRS to generate a number of scientific and operational data products.

ILRS Scientific And Operational Data Products

  • earth orientation parameters (polar motion and length of day)
  • three-dimensional coordinates and velocities of the ilrs tracking stations
  • time-varying geocenter coordinates
  • static and time-varying coefficients of the earth's gravity field
  • centimeter accuracy satellite ephemerides
  • fundamental physical constants
  • lunar ephemerides and librations
  • lunar orientation parameters

Components Of The ILRS

Permanent

  • Governing Board
  • Tracking Stations And Subnetworks
  • Operations Centers
  • Global And Regional Data Centers
  • Analysis And Associate Analysis Centers
  • Central Bureau

Working Groups

  • Missions
  • Data Formats And Standards
  • Networks And Engineering
  • Analysis