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'Space GPS' autonomous spacecraft navigation, Proposal for autonomous spacecraft navigation with X-ray telescope.
TheAnt
post Aug 7 2016, 09:29 AM
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Pulsars can be used for autonomous spacecraft navigation by obtaining position and direction in space with an accuracy of 2km, on condition the spacecraft is provided by one small X-ray telescope on board.

"New method operates autonomously, increasing the number and capabilities of space missions", according to a news page from University of Leicester.
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nprev
post Aug 7 2016, 11:39 PM
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Just for comparison, how accurate are the usual Sun + Canopus methods? I know that Cassini is equipped with an inertial measurement platform, so I assume that star locks are used to update that much like GPS-INS combos on aircraft.


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mcaplinger
post Aug 8 2016, 12:06 AM
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QUOTE (nprev @ Aug 7 2016, 03:39 PM) *
Just for comparison, how accurate are the usual Sun + Canopus methods?

These only sense orientation, not position.

Deep Space 1 used visible asteroid imaging to autonomously determine its position.


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Disclaimer: This post is based on public information only. Any opinions are my own.
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Posts in this topic
- TheAnt   'Space GPS' autonomous spacecraft navigation   Aug 7 2016, 09:29 AM
- - Explorer1   Fascinating stuff; this would be an upgrade from s...   Aug 7 2016, 05:32 PM
- - katodomo   The title first made me think of something by DLR...   Aug 7 2016, 06:28 PM
- - nprev   Just for comparison, how accurate are the usual Su...   Aug 7 2016, 11:39 PM
|- - mcaplinger   QUOTE (nprev @ Aug 7 2016, 03:39 PM) Just...   Aug 8 2016, 12:06 AM
- - nprev   Yeah, realized that was dumb as soon as I typed it...   Aug 8 2016, 12:40 AM
- - Gerald   Re orientation and position: I'd guess, that x...   Aug 8 2016, 07:54 AM
- - Brian Burns   There's actually an experiment launching for t...   Aug 8 2016, 02:13 PM
- - Gerald   Pulsars are like very precise clocks. They emit sh...   Aug 8 2016, 05:38 PM
|- - Brian Burns   QUOTE (Gerald @ Aug 8 2016, 12:38 PM) Com...   Aug 8 2016, 06:32 PM
- - Gerald   Well, the pulses aren't sinus-like, but very s...   Aug 8 2016, 11:27 PM

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