Navigating when away from Earth

In summary: Thanks for catching that. In summary, the navigation system for our solar system is being worked on, but there is not enough demand yet to consider it seriously.
  • #1
happyhacker
49
7
Earth has GPS, GNSS and more I guess. Will there (eventually) be a Navigation system for our Solar system so that autonomous (and manned) flights can move around like we do in our vehicles with an onscreen map. Not trying to be fanciful here just wondered if there are discussions or papers. I assume any trip to Mars say would have a system onboard in case of emergencies like lost Earth contact. And not trying to get to the Stars but I guess that is a different e.g. pulsar method when having left the Solar system behind but only mentioned it as any Solar Positioning System (SPS) might signal for that purpose as the 'Home' coordinate. Also wondered if existing Spacecraft orbiting planetary bodies by default act as reference points. Did iSearch but not anything really obvious there. Thanks.
 
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  • #2
Currently deep-space navigation utilize precision DSN ranging as equivalent to GPS.
Work is ongoing on optical navigation
https://www.nasa.gov/sites/default/files/atoms/files/session_3_-4_ spacecraft _navigation_using_optical_astrometry_ranging_tomas_martin-mur_0.pdf

to reduce DSN loads.

Also, some talks do exist to deploy Moon GPS, but currently seems simply not enough demand to consider it seriously.
 
  • #3
Thanks. The ref you gave (below) it seems they've pulled it. Never mind. I wonder if when the number of rovers on site say Mars gets significant then a GPS system (or equivalent In the orbiting control MRO?) would help ground vehicles collaborate (in an AI context). And of course anything orbiting could be part of a wider Nav system. Complex stuff I guess and futuristic.

404
The cosmic object you are looking for has disappeared beyond the event horizon.
 
  • #5
You are kind. Why didn't I think of that!
 
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Likes berkeman

1. How do astronauts navigate when they are away from Earth?

Astronauts use a combination of tools and techniques to navigate when they are away from Earth. This includes using star charts, gyroscopes, and computer systems to determine their position and trajectory.

2. What is the role of GPS in navigating in space?

GPS (Global Positioning System) is not used for navigation in space as it relies on satellites orbiting Earth. However, it can be used for navigation during the initial stages of a space mission, such as launching and docking with the International Space Station.

3. How do astronauts know which direction they are traveling in space?

Astronauts use a combination of visual cues, such as the position of the sun and stars, as well as instruments like gyroscopes to determine their direction in space.

4. What challenges do astronauts face when navigating in space?

Navigating in space can be challenging due to the vast distances involved and the lack of familiar landmarks. Astronauts must also account for factors such as gravitational pulls from other objects and changes in their own spacecraft's trajectory.

5. Can astronauts get lost in space?

While it is possible for astronauts to become disoriented in space, they are trained extensively in navigation techniques and have access to advanced technology to help them stay on course. Additionally, they are in constant communication with ground control who can assist with navigation if needed.

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