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  3. Milestone: NASA achieved GPS signals on Moon

Milestone: NASA achieved GPS signals on Moon

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  • empireoflove2@lemmy.dbzer0.comE [email protected]

    Their achieved accuracy was +/- 1.5km and +/- 2m/s

    Which is an improvement in of itself. That improves flying craft navigation to and from the moon into something significantly easier to automate and coordinate more than ballistic dead reckoning.

    ? Offline
    ? Offline
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    wrote on last edited by
    #21

    is it really such a huge deal ? Afaik "ballistic dead rekoning" is really, really accurate and isnt difficult to automate (it's mostly math after all)

    itslilith@lemmy.blahaj.zoneI 1 Reply Last reply
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    • H [email protected]

      someone with far more experience replied to me and he might be better to ask. Im sorta viewing this as like the equivalent of sputnik for what it is and like how long it took to get civilian gps in the 90's. So like 30 or 40 years. stuff by and large goes faster now so im thinking this may be something utilized by actual space industries if they can get going in the next ten or twenty years. I mean ten is unlikely but never know. Total peanut gallery opinion from me though. I don't work in the industry im just a science and technology geek.

      M This user is from outside of this forum
      M This user is from outside of this forum
      [email protected]
      wrote on last edited by
      #22

      Add 20 years more to account for WW3.

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      • ? Guest

        is it really such a huge deal ? Afaik "ballistic dead rekoning" is really, really accurate and isnt difficult to automate (it's mostly math after all)

        itslilith@lemmy.blahaj.zoneI This user is from outside of this forum
        itslilith@lemmy.blahaj.zoneI This user is from outside of this forum
        [email protected]
        wrote on last edited by
        #23

        For longer missions it helps to be able to re-calibrate, as with dead-reckoning, the errors cumulate

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        • empireoflove2@lemmy.dbzer0.comE [email protected]

          Their achieved accuracy was +/- 1.5km and +/- 2m/s

          Which is an improvement in of itself. That improves flying craft navigation to and from the moon into something significantly easier to automate and coordinate more than ballistic dead reckoning.

          D This user is from outside of this forum
          D This user is from outside of this forum
          [email protected]
          wrote on last edited by
          #24

          Better than ballistic dead reckoning, yes. I'm not sure whether it is better or worse than star trackers plus inertial navigation units at that time scale (INUs drift over time and need to be recalibrated every so often to fix that drift, but I really don't know how accurate star trackers are for position since I only use them for attitude measurement).

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