Navigation and service

International Laser Ranging Service (ILRS)


The primary mission of the ILRS is to support, through Satellite Laser Ranging (SLR) and Lunar Laser Ranging (LLR) data as well as related products, geodetic and geophysical research activities.

Web site:

ILRS representatives to the IERS Directing Board:
IERS representative to the ILRS Governing Board:
  • International Laser Ranging Service (ILRS)
  • ILRS Central Bureau (c/o Carey Noll)
  • NASA Goddard Space Flight Center (GSFC)
  • Code 61A
  • Greenbelt MD 20771
  • USA
  • Phone: ++1-301-614-6542
  • Fax: ++1-301-614-5970

See also for more information:

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