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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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The Laser Interferometer Space Antenna (LISA): Current plans and prospects for quantum sensing in future space-based gravitational wave observatories

ESA’s third large class mission is a space-based gravitational wave observatory with NASA as a partner. This talk will describe the current plans for this mission, including the expected science, the instrument design, and a schedule for the development and launch. The noise floor of the system will be described and opportunities for improvement, including possible applications os quantum sensing and measurement techniques.

Jeff Livas↗

NASA NTRS1991

Frequency stability of GPS NAVSTAR block 1 and block 2 on-orbit clocks

Analysis of the frequency stability of the on-orbit NAVSTAR clocks os performed by the Naval Research Laboratory. The frequency stability is presented for sample times of one day to 30 days. Composite frequency stability profiles are presented for Block 1 and Block 2 NAVSTAR clocks. Several NAVSTAR cesium clocks show frequency stabilities of a few parts in 10^(14) for long sample times. Time-domain noise-process analysis shows the dominant noise type to be white frequency noise for sample times of one to ten days. The non-stationary stochastic behavior of one of the cesium clocks, illustrated by its frequency stability history, shows that the frequency stability is not always time-invariant.

Thomas B. Mccaskill↗