NASA TESTING ATOMIC CLOCK FOR DEEP SPACE NAVIGATION

Here is a news from NASA.NASA is testing Deep Space Atomic Clock for deep space navigation.

Hello friends,this time I'm here with a great news for you.This news is from NASA who testing an Deep Space Atomic Clock (DSAC) for deep space navigation.We all know that, in deep space, accurate timekeeping plays a vital role in navigation.But not all spacecraft are used too for accurate timekeeping.Navigation in deep space requires measuring broad distances using one's knowledge of how radio waves(or signals) propagate in space.Since radio signals travel with the speed of light, which means that we have to measure their time of flight to a rigour of a few nanoseconds.


Timepiece for future

For 20 years, NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, trying to perfect a clock to solve the problems of navigation in deep space.This clock is named as Deep Space Atomic Clock (DSAC) or simply an Atomic Clock.It is an instrument built for deep space exploration.

DSAC is a more advanced prototype of a small, light- weight atomic clock based on mercury-ions technology.Those atomic clocks which are in use at ground station in the DSN (Deep Space Network) are about the size of a refrigerator while DSAC is about 4 small micro-oven.Scientists promises that it could be miniatured in future.


The DSAC aims to give exact installed timekeeping to future NASA project.Currently, most missions work on the ground-based radio wires or antennas which send narrow signals to spacecraft and receiving a back signal to calculate it's path, locations & velocity.A Spacecraft this tech has to use a signal sent from Earth to calculate its location then returning the signal & waiting for command from the Earth.This may take an hour.

But now, DSAC enables spacecraft to only focus on mission rather than adjusting their location.This innovation would also allow ground stations to keep eye on multiple satellites at the same time.The DSAC mission will use the navigation system of US GPS to confirm its performance.


If DSAC get proven then the clock guaranteed increase its tracking data quantity & improve its quality.With the help of DSAC technology scientists can can also improve GPS clock stability.In Ground-based tests, it was proved that DSAC is 50 times more stable than the atomic clock.DSAC claims that it will be the most stable navigation space clock ever flown.


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Scien-Tech News: NASA TESTING ATOMIC CLOCK FOR DEEP SPACE NAVIGATION
NASA TESTING ATOMIC CLOCK FOR DEEP SPACE NAVIGATION
Here is a news from NASA.NASA is testing Deep Space Atomic Clock for deep space navigation.
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