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ISS Docking Simulation

iss-sim.spacex.com

41–50 of 149 posts

Re: ISS Docking Simulation

#41
post #39
post #3

Very good illustration how "full inertial physics" works (in contrast to what can be seen in sci-fi movies). This is a huge potential procrastination catalyst :-)

"Gravity" was quite accurate, no?

In some ways... In many other ways the physics was wildly inaccurate.

Re: ISS Docking Simulation

#42
post #21

Earlier quoted context omitted.

They do, Dragon 2 docking is fully automated. The manual controls are a backup.

Did they get approved for full auto? Last I looked, only Kurs-equipped were allowed, everyone else got moved with Canadarm.

Dragon 2 lacks the grapple point necessary for the Canadarm to grab it (unlike Dragon 1, which did indeed get berthed using the arm).

Dragon 2 has already done an autonomous docking to the ISS, as part of the DM-1 mission.

Re: ISS Docking Simulation

#43

Nailed it first time!! I was super excited too, cos it was so obvious that this so-called “simulation” was in reality a test to find pilots to save the ISS from some top secret calamity that we don’t know about. Surely this was going to be like in “the last Starfighter”, except that Elon Musk would be the one knocking on my door, needing a new pilot. Sadly it just said “congratulations” :(

Give them a minute - they're drafting an offer.

And when you counter, don't forget to mention how much a successful docking would save them.

Re: ISS Docking Simulation

#44

Surprised they don't have a computer do this.

They do. And I guess that manual operation is possible, but it's rather an emergency option only.

Fully automated docking for Soyuz capsules called Kurs[1] was developed in 80's for flights to Mir. When USSR dissolved and it turned out that this system was fully owned by Ukraine, Russian space agency tried to test how viable is to dock via manual bakup docking system TORU[2], which failed and damaged the space station. On the other hand, there is at least one occasion when Kurs failed and the manual backup saved the docking.

[1] https://en.wikipedia.org/wiki/Kurs_(docking_navigation_syste... [2] https://en.wikipedia.org/wiki/TORU

Re: ISS Docking Simulation

#45
post #18

I’m glad this is available online. This is a very standard docking UI for spacecraft - everyone in the industry has an almost identical design. ULA has shown a simulator exactly like this in conferences for years now.

Really? I'd have thought they'd give the astronauts a proper 6DoF controller (e.g. a SpaceBall or SpaceMouse) instead of making them mash buttons like this.

Yea, with this interface docking this space pot feels like trying to draw in MS Paint with my mouse.

Re: ISS Docking Simulation

#46
I find it mind-boggling I had less difficulty docking at the ISS than landing a fighter jet in DCS World.

On the other hand, being able to stop the module and zero all unnecessary movement before proceeding to dock is something I can't do with aircraft on Earth.

Re: ISS Docking Simulation

#48
post #39
post #3

Very good illustration how "full inertial physics" works (in contrast to what can be seen in sci-fi movies). This is a huge potential procrastination catalyst :-)

"Gravity" was quite accurate, no?

No. It's a great movie, but pretty much every bit of orbital dynamics was wrong, along with many other things. Here are a few articles explaining, and it's not hard to find more: https://science.time.com/2013/10/01/what-gravity-gets-right-..., https://slate.com/technology/2013/10/bad-astronomy-movie-rev..., https://www.spaceanswers.com/space-exploration/16-things-gra...

Re: ISS Docking Simulation

#49
post #38

Is this the way it is done in real life? Wouldn't it be better to let a computer handle this?

I was thinking that the ends of the masts would be excellent places for a machine vision high-contrast target, and maybe also the bottom of the cupola for full 6 axis machine correction. I doubt we'll be taking a human out of the loop anytime soon, though.

Re: ISS Docking Simulation

#50
post #23

I've flown enough "flight assist off" in Elite Dangerous so this worked exactly like I expected it to :) I hope someone makes a game like Elite Dangerous without care for actual gameplay, and even more realism. For example, with FA off in ED, there's still a speed limit that varies from ship to ship.

"Rogue system" might be what you are looking for.

https://www.youtube.com/watch?v=vziIgAtD66s

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