Using the Deep Space Atomic Clock for Navigation and Science
Routine use of one-way radiometric tracking for deep space navigation and radio science is not possible today because spacecraft frequency and time references that use state-of-the-art ultrastable oscillators introduce errors from their intrinsic drift and instability on timescales past 100 s. The D...
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| Veröffentlicht in: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2018-06, Vol.65 (6), p.950-961 |
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| container_title | IEEE transactions on ultrasonics, ferroelectrics, and frequency control |
| container_volume | 65 |
| creator | Ely, Todd A. Burt, Eric A. Prestage, John D. Seubert, Jill M. Tjoelker, Robert L. |
| description | Routine use of one-way radiometric tracking for deep space navigation and radio science is not possible today because spacecraft frequency and time references that use state-of-the-art ultrastable oscillators introduce errors from their intrinsic drift and instability on timescales past 100 s. The Deep Space Atomic Clock (DSAC), currently under development as a NASA Technology Demonstration Mission, is an advanced prototype of a space-flight suitable, mercury-ion atomic clock that can provide an unprecedented frequency and time stability in a space-qualified clock. Indeed, the ground-based results of the DSAC space demonstration unit have already achieved an Allan deviation of 2 × 10 -15 at one day; space performance on this order will enable the use of one-way radiometric signals for deep space navigation and radio science. |
| doi_str_mv | 10.1109/TUFFC.2018.2808269 |
| format | Article |
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| source | IEEE Electronic Library (IEL) |
| subjects | Atomic clocks Clocks Extraterrestrial measurements Ions navigation Orbits radio science radiometrics Sensitivity Space vehicles Temperature measurement |
| title | Using the Deep Space Atomic Clock for Navigation and Science |
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