Questions tagged [time]

How passage of time impacts space exploration activities.

How passage of time impacts space activities.

112 questions
15
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How would time measurement be done over great distances?

Already on earth the time is a bit of a problem with the time-zones. It is not that big a problem though, since we all "travel" at (nearly) the same speed. Not so in space. With the time dilatation (and probably some other factors) one cannot simply…
Burkhard
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7
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What time format does Voyager twitter use?

Lately I saw this strange date format in a Voyager 2 tweet: Sister ship @NASAVoyager is 21 hrs 19 mins 00 secs of light-travel time from Earth (2021:247:120000:1L) Of course I understood that first two numbers is year and day of year but I don't…
5
votes
3 answers

How far can you travel until you can't get back to where you started?

I searched for this question but couldn't find it, so I'm asking. Lets just ignore turning into a liquid at high accelerations and the fact that an object with mass cannot travel at the speed of light (I say that last one because as your velocity…
Terran
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UTC timestamp format for launch vehicles

Has anyone ever seen UTC timestamps of the format xxx:HH:mm:ss.sss? What are the three x's at the front. For reference, this timestamp belongs to an upcoming launch in June of 2019.
Knudsen Number
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2
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2 answers

Computation of Barycentric Dynamical Time using SPICE's definition

I've written a high fidelity time management library (hifitime, currently in Rust, Python interface planned) which converts between time systems (TT, TAI, UTC, etc.) and time representations (Gregorian, JDE, MJD). The current TDB computation uses…
ChrisR
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