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Starlink lost 40 satellites to a geomagnetic storm

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Re: Starlink lost 40 satellites to a geomagnetic storm

#51
post #48

Earlier quoted context omitted.

An entire launch worth of satellites is not a "rounding error." The carbon impact of just one launch is pretty obscene.

In context of 1700 starlink satellites already in orbit and 30+ launches that put them there, it’s a rounding error. Same goes for carbon impact, etc.

1700 - 40 = 1660. Rounded it to the nearest integer.

Re: Starlink lost 40 satellites to a geomagnetic storm

#52
post #20

40 sats makes up about 2% of the current fleet - so a rounding error in cost and time. The important part of this news is how those 40 sats deorbit and leave no junk either in orbit or on earth.

From the press release:

"up to 40 of the satellites will reenter or already have reentered the Earth’s atmosphere. The deorbiting satellites pose zero collision risk with other satellites and by design demise upon atmospheric reentry—meaning no orbital debris is created and no satellite parts hit the ground."

The satellites are deliberately inserted into a low orbit so that any that fail to initialize properly will get pulled down by atmospheric drag. After successful initialization, they travel to a higher orbit (where presumably deorbiting under failure is more of an issue).

Re: Starlink lost 40 satellites to a geomagnetic storm

#53
post #18

What's crazy to me is that 50 years ago, losing 40 satellites would have been a significant portion of all satellites ever launched . Today, it's a temporary setback for a company that launched nearly one thousand satellites last year.

That's part of the reason there's just so much junk flying around in orbit.

https://en.wikipedia.org/wiki/Kessler_syndrome

Re: Starlink lost 40 satellites to a geomagnetic storm

#54
post #48

Earlier quoted context omitted.

In context of 1700 starlink satellites already in orbit and 30+ launches that put them there, it’s a rounding error. Same goes for carbon impact, etc.

1700 - 40 = 1660. Rounded it to the nearest integer.

In scientific notation (orders of magnitude is what matters here):

1.700e3 rounded -> 2e3

1.660e3 rounded -> 2e3

Put another way: if your bill for lunch is $16.60, wouldn't you just as easily call it $17? Or even $20, if you're feeling a bit imprecise?

Re: Starlink lost 40 satellites to a geomagnetic storm

#57
post #18

What's crazy to me is that 50 years ago, losing 40 satellites would have been a significant portion of all satellites ever launched . Today, it's a temporary setback for a company that launched nearly one thousand satellites last year.

That's part of the reason there's just so much junk flying around in orbit. https://en.wikipedia.org/wiki/Kessler_syndrome

If you read the article, SpaceX specifically designed the process to avoid orbiting junk.

Re: Starlink lost 40 satellites to a geomagnetic storm

#58

Of all press releases in recent memory, this is the one that reads the most like hard science fiction.

I think the press release is lacking in detail. For example, they completely fail to disclose whether recovery was attempted by rerouting power from life support to the structural integrity field.

I believe a geomagnetic storm calls for rerouting power to the subspace accelerators backing your deflector dish, and of course sufficient impulse power to maintain an appropriate heading, not rerouting to the SIF. Please get your spaceship right. It's a technical forum!

Re: Starlink lost 40 satellites to a geomagnetic storm

#59

Of all press releases in recent memory, this is the one that reads the most like hard science fiction.

what's cool is, it doesn't even feel futuristic anymore.

Someday potentially we could buy/lease/rent our own satelites over satelites.com use it for personal research, photography etc.,

Re: Starlink lost 40 satellites to a geomagnetic storm

#60
post #20

40 sats makes up about 2% of the current fleet - so a rounding error in cost and time. The important part of this news is how those 40 sats deorbit and leave no junk either in orbit or on earth.

An entire launch worth of satellites is not a "rounding error." The carbon impact of just one launch is pretty obscene.

A falcon 9 uses about as much fuel as three transatlantic flights, doesn't it?
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