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  2. Atomic Clock Ensemble in Space - Wikipedia

    en.wikipedia.org/wiki/Atomic_Clock_Ensemble_in_Space

    Atomic Clock Ensemble in Space (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory ...

  3. List of atomic clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_atomic_clocks

    Toggle the table of contents. List of atomic clocks. ... Print/export Download as PDF; ... 18 cesium atomic clocks and 4 hydrogen maser clocks

  4. Department of Defense master clock - Wikipedia

    en.wikipedia.org/wiki/Department_of_Defense...

    The master atomic clock ensemble at the U.S. Naval Observatory in Washington D.C., which provides the time standard for the U.S. Department of Defense. [1] The rack mounted units in the background are caesium beam clocks. The black units in the foreground are hydrogen maser standards.

  5. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    The development of atomic clocks has led to many scientific and technological advances such as precise global and regional navigation satellite systems, and applications in the Internet, which depend critically on frequency and time standards. Atomic clocks are installed at sites of time signal radio transmitters. [103]

  6. United States Naval Observatory - Wikipedia

    en.wikipedia.org/wiki/United_States_Naval...

    Atomic clock ensemble at the U.S. Naval Observatory. The U.S. Naval Observatory operates two “Master Clock” facilities, one in Washington, DC, and the other at Schriever SFB near Colorado Springs, CO. The primary facility, in Washington, D.C. maintains 57 HP/Agilent/Symmetricom 5071A-001 high performance cesium atomic clocks and 24 hydrogen ...

  7. Category:Atomic clocks - Wikipedia

    en.wikipedia.org/wiki/Category:Atomic_clocks

    This page was last edited on 8 February 2018, at 00:53 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  8. Time and frequency transfer - Wikipedia

    en.wikipedia.org/wiki/Time_and_frequency_transfer

    In a two-way time transfer system, the two peers will both transmit and receive each other's messages, thus performing two one-way time transfers to determine the difference between the remote clock and the local clock. [4]: 118 The sum of these time differences is the round-trip delay between the two nodes. It is often assumed that this delay ...

  9. Oscilloquartz - Wikipedia

    en.wikipedia.org/wiki/Oscilloquartz

    Oscilloquartz, a company of Adtran Inc., is a manufacturer of network and application timing technology including atomic clocks, PTP grandmaster clocks, PTP slave and boundary clocks, GNSS clocks and Time Scale Systems. Oscilloquartz's portfolio also includes its Ensemble synchronization monitoring and management software.