Deep Space Atomic Clock - Wikipedia
The Deep Space Atomic Clock (DSAC) was a miniaturized, ultra-precise mercury-ion atomic clock for precise radio navigation in deep space. DSAC was designed to be orders of magnitude more stable than existing navigation clocks, with a drift of no more than 1 nanosecond in 10 days. [3]
Deep Space Atomic Clock (DSAC) - NASA
Launched in June 2019, NASA's Deep Space Atomic Clock (DSAC) is a critical step toward enabling spacecraft to safely navigate independently in deep space rather than rely on the time-consuming process of waiting to receive directions from Earth.
Deep Space Atomic Clock (DSAC) Overview - NASA
2015年5月20日 · The clock’s in-space mission will validate its stability in orbit, fully characterize its long-term performance, and demonstrate its capability as a navigation instrument. The Deep Space Atomic Clock is hosted on a spacecraft provided by General Atomics Electromagnetic Systems of Englewood, Colorado.
Deep Space Atomic Clock - NASA Jet Propulsion Laboratory (JPL)
2019年6月25日 · The Deep Space Atomic Clock, or DSAC, was a technology demonstration of a small, ultra-precise, mercury-ion atomic clock launched into Earth orbit to test its potential as a next-generation tool for spacecraft navigation, radio science, and global positioning systems.
Five Things to Know about NASA’s Deep Space Atomic Clock
2019年6月4日 · The Deep Space Atomic Clock is the first atomic clock small and stable enough to fly on a spacecraft beyond Earth’s orbit. As NASA works to put humans on Mars and the Moon, the clock’s precise timekeeping will be key to these missions’ success.
Atomic Clocks Explained: NASA Set To Launch a Deep Space …
2019年6月23日 · The Deep Space Atomic Clock, developed by NASA's Jet Propulsion Laboratory, is a space-ready upgrade to the atomic clocks we use here on Earth and to the clocks that already fly on...
Deep Space Atomic Clock - NASA Jet Propulsion Laboratory (JPL)
2015年4月27日 · NASA is making great strides to develop the Deep Space Atomic Clock, or DSAC for short. The clock is being readied to fly and validate a miniaturized, ultra-precise mercury-ion atomic clock that is orders of magnitude …
Working Overtime: NASA’s Deep Space Atomic Clock Completes Mission
2021年10月5日 · Watch this video explainer to learn why accurate timekeeping in space is essential and how NASA’s Deep Space Atomic Clock will make future spacecraft less dependent on Earth to navigate autonomously.
Demonstration of a trapped-ion atomic clock in space | Nature
2021年6月30日 · Operating in space, NASA’s Deep Space Atomic Clock, a trapped-ion clock, is shown to have long-term stability and drift that are an order of magnitude better than current space clocks.
What Is an Atomic Clock? - NASA
2019年6月19日 · Up to 50 times more stable than the atomic clocks on GPS satellites, NASA’s Deep Space Atomic Clock is intended to be the most stable atomic clock ever flown in space. It achieves this stability by using mercury ions.