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Report from APL M. Miranian

Report from APL M. Miranian. 43 rd CGSIC Timing Subcommittee March 11, 2004. Time and Frequency Lab. Mission. Provide precise time and frequency in support of critical APL projects and maintain traceability to U.S. and international timing laboratories. APL Space Science Missions.

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Report from APL M. Miranian

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  1. Report from APLM. Miranian 43rd CGSIC Timing Subcommittee March 11, 2004

  2. Time and Frequency Lab

  3. Mission Provide precise time and frequency in support of critical APL projects and maintain traceability to U.S. and international timing laboratories.

  4. APL Space Science Missions • NEAR – Near Earth Asteroid Rendezvous • TIMED – Thermosphere Ionosphere Mesosphere Energetics and Dynamics • MESSENGER – MErcury Surface, Space ENvironment, GEochemistry, and Ranging

  5. APL Space Science Missions(continued) • STEREO – Solar TErrestrial RElations Observatory • New Horizons

  6. APL Project Support • High Stability Frequency References • Flight Hardware Development • Flight Ground System Development • Space Qualification Testing • Reference to APL’s Satellite Tracking Facility

  7. APL Project Support (continued) • Precise Time Code Signals • Satellite Propulsion Maneuvers • Time Tagging Spacecraft Telemetry Frames

  8. Time and Frequency Dissemination • 1 MHz, 5 MHz, 10 MHz, 100 MHz • 1 PPS • IRIG-B APL Local Time • IRIG-B UTC • Common View GPS Time Transfer • NIST, USNO, BIPM

  9. Time and Frequency Lab Hardware • 3 High Performance Caesium Standards • 2 Hydrogen Masers • Additional 2 on order • 5 MHz measurement system • 1 PPS clock monitor system

  10. Summary • Support R&D and Operations at APL • Complete Modernization Effort • Maintain Traceability to US and International Standards

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