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  2. Jet Propulsion Laboratory Development Ephemeris - Wikipedia

    en.wikipedia.org/wiki/Jet_Propulsion_Laboratory...

    DE422 [34] was created in 2009 for the MESSENGER mission to Mercury. A Long Ephemeris, it was intended to replace DE406, covering 3000 BC to AD 3000. DE423 [35] was released in 2010. Position estimates of the MESSENGER spacecraft and additional range and VLBI data from the Venus Express spacecraft were fit. DE423 covered the years 1799 to 2200.

  3. Jet Propulsion Laboratory - Wikipedia

    en.wikipedia.org/wiki/Jet_Propulsion_Laboratory

    Jet Propulsion Laboratory (JPL) is a Federally Funded Research and Development Center in La Cañada Flintridge, California, Crescenta Valley, United States. [1] Founded in 1936 by Caltech researchers, the laboratory is now owned and sponsored by the National Aeronautics and Space Administration and administered and managed by the California Institute of Technology.

  4. JPL Horizons On-Line Ephemeris System - Wikipedia

    en.wikipedia.org/wiki/JPL_Horizons_On-Line...

    JPL Horizons On-Line Ephemeris System provides access to key Solar System data and flexible production of highly accurate ephemerides for Solar System objects. Osculating elements at a given epoch (such as produced by the JPL Small-Body Database ) are always an approximation to an object's orbit (i.e. an unperturbed conic orbit or a " two-body ...

  5. Mariner program - Wikipedia

    en.wikipedia.org/wiki/Mariner_program

    Launch of Mariner 1 in 1962. The Mariner program was conducted by the American space agency NASA to explore other planets.Between 1962 and late 1973, NASA's Jet Propulsion Laboratory (JPL) designed and built 10 robotic interplanetary probes named Mariner to explore the inner Solar System – visiting the planets Venus, Mars and Mercury for the first time, and returning to Venus and Mars for ...

  6. Download, install, or uninstall AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-downloading...

    Download Desktop Gold. AOL Desktop Gold is included at no additional cost with your membership. 2. Under 'All Products' scroll to 'AOL Desktop Gold'. If you have an AOL Desktop Gold trial or subscription. Using the link in the Official AOL signup confirmation email you received. 1.

  7. Goldstone Deep Space Communications Complex - Wikipedia

    en.wikipedia.org/wiki/Goldstone_Deep_Space...

    Goldstone Observatory in 1963. The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is a satellite ground station located in Fort Irwin [1] in the U.S. state of California. Operated by NASA 's Jet Propulsion Laboratory (JPL), its main purpose is to track and communicate with interplanetary space ...