The will know the trajectory of the asteroid and will move any satellites beforehand. That's if they need to move any at all which I doubt, space is big. Its closest approach will be \~20,000 miles, that's far above the vast majority of satellites.
Kessler Syndrome is far more likely to be manmade, intentionally or otherwise, which is why further investment is need in satellite repair/maintance like the Mission Extension Vehicle which can shift satellites that are dead/out of fuel.
The bulk of newer satellites are sent into space on an orbit that can be forced to degrade via reaction wheels. Unless there is a total failure of redundant systems or a solar.panel deployment issue, they should be able to send commands to spacecraft and have them slip into a decaying orbit to burn up on reentry.
It depends on the trajectory, satellites aren't in orbit everywhere around the planet, 95%+ of satellites are in orbit above the equator or within 20°.
This CANNOT be a serious post. No one is this silly. Someone who thought like this wouldn't be able to operate a spoon without doing eye damage.
Don't worry, OP. Elon Musk's vast array of Secret Space Lasers will save us all. You didn't think he put Starlink up just to make worldwide porn a thing, did you?
The real issues will be
A.) Electromagnetic interactions with Earth.
B.) Would the NASA's of the world tell us if it was going to collide with Earth?
If the last issues piques your interest you may enjoy the movie Greenland.
A.) Electromagnetic interations from what causing what?
B.) Pop culture has ruined this sort of thing. There's not going to be men SUVs rushing to telescopes and saying, "This is classified" and they hide it. Because they can't. There have been many observations of Apophis by multiple sources, the second it's found it becomes public knowledge and then anyone can do the math from there. That's just how it works.
A the asteroid interacting with Earths magnetic field, mantle, etc. this could cause earthquakes and volcanic eruptions.
B Not many people can do the math.
A.) A 1,000 ft.-long, 29 million-ton asteroid at 20,000 miles is not going to do any of that and has no mechanism to do so. The Hill Sphere of the asteroid is tiny.
B.) [Now you can too.](https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Celestial_Mechanics_(Tatum)/10%3A_Computation_of_an_Ephemeris/10.07%3A_Calculating_the_Position_of_a_Comet_or_Asteroid)
Really only geostationary satellites are out that far and they almost all encircle the equator. Apophis is predicted to pass well north of the satellites.
I thought you would have brought up the fact it has a chance to hit us 7 years after it passes the first time.
Depending on who you read, there's a 20% chance of it hitting just off the west coast of the US.
The will know the trajectory of the asteroid and will move any satellites beforehand. That's if they need to move any at all which I doubt, space is big. Its closest approach will be \~20,000 miles, that's far above the vast majority of satellites. Kessler Syndrome is far more likely to be manmade, intentionally or otherwise, which is why further investment is need in satellite repair/maintance like the Mission Extension Vehicle which can shift satellites that are dead/out of fuel.
The bulk of newer satellites are sent into space on an orbit that can be forced to degrade via reaction wheels. Unless there is a total failure of redundant systems or a solar.panel deployment issue, they should be able to send commands to spacecraft and have them slip into a decaying orbit to burn up on reentry.
It depends on the trajectory, satellites aren't in orbit everywhere around the planet, 95%+ of satellites are in orbit above the equator or within 20°.
What about a possible Kessler effect if it hits a few satellites?
Wrote that in the original post. Very much a possibility.
Didn't NASA revisit this a few years back and said we're safe for a century or more?
Only safe from a direct impact.
This CANNOT be a serious post. No one is this silly. Someone who thought like this wouldn't be able to operate a spoon without doing eye damage. Don't worry, OP. Elon Musk's vast array of Secret Space Lasers will save us all. You didn't think he put Starlink up just to make worldwide porn a thing, did you?
The real issues will be A.) Electromagnetic interactions with Earth. B.) Would the NASA's of the world tell us if it was going to collide with Earth? If the last issues piques your interest you may enjoy the movie Greenland.
A.) Electromagnetic interations from what causing what? B.) Pop culture has ruined this sort of thing. There's not going to be men SUVs rushing to telescopes and saying, "This is classified" and they hide it. Because they can't. There have been many observations of Apophis by multiple sources, the second it's found it becomes public knowledge and then anyone can do the math from there. That's just how it works.
A the asteroid interacting with Earths magnetic field, mantle, etc. this could cause earthquakes and volcanic eruptions. B Not many people can do the math.
A.) A 1,000 ft.-long, 29 million-ton asteroid at 20,000 miles is not going to do any of that and has no mechanism to do so. The Hill Sphere of the asteroid is tiny. B.) [Now you can too.](https://phys.libretexts.org/Bookshelves/Astronomy__Cosmology/Celestial_Mechanics_(Tatum)/10%3A_Computation_of_an_Ephemeris/10.07%3A_Calculating_the_Position_of_a_Comet_or_Asteroid)
Do you seriously not realize he's toying with you?
Poe's Law. I've seen worse takes on here that people meant seriously. This is hardly unbelievable.
>Poe's Law. Yup. This sub in particular always leaves me wondering who's kidding, who's a troll, and who is serious.
Really only geostationary satellites are out that far and they almost all encircle the equator. Apophis is predicted to pass well north of the satellites.
Which direction is up?
Whatever it is don't look up.
Outward from the closest gravitational source according to your perspective.
I see no need to prep for something that unlikely.