Questions tagged [atomic-clock]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
7 votes
3 answers
3k views

How do other satellite and ICBM clocks interact with GPS satellite clocks

I've read this answer about satellites synchronizing their clocks with the Earth frame with adjustments for special and general relativity for speed and gravity. There are some satellites and ICBMs ...
foolishmuse's user avatar
3 votes
2 answers
321 views

Could a satellite use a Miniature Atomic Clock (MAC) to provide GPS services?

I've been investigating GPS satellites and I got curious about onboard atomic clocks. I found this following paper on the concept of a CubeSat GPS constellation using Chip-Scale Atomic Clocks, and ...
Bensas's user avatar
  • 193
2 votes
1 answer
1k views

How to convert GPS time to TAI time to UTC time?

I had naively assumed that GPS time and TAI were the same thing until I saw this answer: https://space.stackexchange.com/a/22244/12508 I know that there are differences between Terrestrial Time (TT) ...
honeste_vivere's user avatar
1 vote
0 answers
61 views

How will Lucy "make use" of a deep space atomic clock?

The entry for Lucy in Wikipedia's Selection of Discovery Mission 13 and 14; Finalists says: The mission will make use of the Deep Space Atomic Clock.81 81https://www.universetoday.com/122822/...
uhoh's user avatar
  • 149k
8 votes
2 answers
293 views

How are Spacecraft Event Times (SETs) managed; to what timescales are they linked?

Spacecraft Event Time explains the importance of remembering just how darn slow light is; it takes minutes, hours, and in a few cases almost a day for light to travel one way between humans and their ...
uhoh's user avatar
  • 149k
2 votes
1 answer
210 views

How high is the first Deep Space Atomic Clock orbiting? Does it receive radiation equivalent to that in deep space?

The Livescience article NASA's Tiny New Atomic Clock Could Let Spacecraft Drive Themselves in Deep Space says: But the radiation still changes the way the electronics operate. And those changes ...
uhoh's user avatar
  • 149k
1 vote
3 answers
260 views

How accurately can you determine time from planetary/star positions?

I was reading this question which has to deal with the accuracy of on-board atomic clocks. In the question it mentions multiple times that only recently did we start including accurate enough clocks ...
Magic Octopus Urn's user avatar
4 votes
2 answers
161 views

Help understanding exactly how an atomic clock facilitates “self-driving spacecraft” when paired with an onboard camera?

The TechCrunch article NASA details Deep Space Atomic Clock and other tests launching on SpaceX Falcon Heavy says: Jill Seubert, Deep Space Navigator for NASA, explained that this is the world’s ...
uhoh's user avatar
  • 149k
5 votes
1 answer
295 views

How does an onboard atomic clock help interplanetary navigation?

On 2019 June 22, JPL will launch and test the accuracy of an onboard atomic clock. Its FAQ says that it will improve interplanetary navigation because for the ship to determine its position, instead ...
Camille Goudeseune's user avatar
2 votes
1 answer
242 views

Where would one deploy deep space atomic clocks?

Space.com: NASA IS LAUNCHING A GPS SYSTEM FOR SPACE NASA/JPL news: Five Things to Know about NASA's Deep Space Atomic Clock NASA mission pages clock NASA Deep Space Atomic Clock Fact Sheet The first ...
uhoh's user avatar
  • 149k