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SpaceX Discussion Thread


Skylon

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BTW, SpaceX rocks the coverage.

  On 11/11/2019 at 3:13 PM, sevenperforce said:

It blows my mind that SpaceX just pulled off an entire launch, for itself, for the cost of propellant, an upper stage, and recovery/refurb. 

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Yeah. Their costs on these sats are incredibly low. I'd wager that including launch, even with just F9 they are a couple orders of magnitude (or more) cheaper in per sat cost than their not yet flown competition.

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  On 11/11/2019 at 3:35 PM, RealKerbal3x said:

That was a flawless launch and booster landing. Sad that they didn't recover the fairing...

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They are recovering the fairings the same way they did last time -- splash-down and fish-out. Seas were just too heavy after yesterday's weather to have the nets out.

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  On 11/11/2019 at 3:35 PM, RealKerbal3x said:

If they could have just delayed five minutes, I would have been able to see it live :( At least I'll be able to see SES-2 and payload deployment.

Well, whatever. That was a flawless launch and booster landing. Sad that they didn't recover the fairing...

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I logged in 20 mins after launch to see... I missed the live launch. :P

 

I'm wondering, if these get to shoebox size (or a bit bigger, solar/antenna depending), what are the de-orbit/kessler situations for them? Is it like the sea, where the particles hang around for ages, polluting, or would it disperse quickly?

Would we end up with launch windows in a similar way aircraft do (though for aircraft it's for the runway safety, but for orbit it would be to find the gaps in starlink to get through safe :P ).

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  On 11/11/2019 at 3:45 PM, Technical Ben said:

I'm wondering, if these get to shoebox size (or a bit bigger, solar/antenna depending), what are the de-orbit/kessler situations for them? Is it like the sea, where the particles hang around for ages, polluting, or would it disperse quickly?

Would we end up with launch windows in a similar way aircraft do (though for aircraft it's for the runway safety, but for orbit it would be to find the gaps in starlink to get through safe :P ).

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They deorbit rapidly enough if not orbit-controlled. A few days if they don't do their initial orbit raise; 5 years if they lose power on orbit. 

There are plenty of gaps during ascent. Because they are at an orbit where anything uncontrolled will deorbit in a few years, there's not much debris for them to interact with. Coplanar collisions are more likely than normal ones.

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