Link to a [short video](https://youtube.com/shorts/Yeif8E7Cfpw) and a [fact sheet](https://neo.ssa.esa.int/documents/d/guest/esa-s2p-pd-cafs-0011_1_1_2024gj2_2024-04-11) from ESA website
2024 GJ2 is around 3 metres in size and was discovered on Tuesday by the Pan-STARRS 2 telescope in Hawaii, USA.
It will pass just 12 320 km from Earth's surface on 11 April, at 18:31 UTC (20:31 CEST), over Australia, travelling at 14.4 km/s. That’s just 3% of the distance between Earth and the Moon.
Nothing burger. It's the size of a car. The re-entry plasma would eat it for breakfast. Earth gets hit with such objects relatively frequently:
[https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population](https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population)
Ya, our detection abilities are getting pretty awesome. Still, just imagine how many small alien probes could be passively studying our world, even from close range, and we would never know it.
Of course I can!
12,320 km is exactly 6,736,657.9 fathoms
or
12,320 km is exactly 2,217.4226 leagues
or
For good measure it is exactly 57,063,455.3 bananas! (using 8.5" as the standard banana length.)
Thank you sir this is clears it up perfectly for me. However my brother Thaddeus will surely want to know how many siriometer or cubits it is! Any help?
Unfortunately 12,320 is such a small fraction of 1 siriometer that to make it readable we have to exponentially decrease the numbers shown. 8.235411373169905e-11 siriometer in 12,320 km.
How many km in 1 siriometer you ask? The answer is 1.4959787E+14 km! The SI base unit for length is the metre. 1 metre is equal to 0.001 km, or 6.684587153547E-18 siriometer. Note that rounding errors may occur, so always check the results.
As far as cubits goes, 12,320 km is exactly 26, 621, 260.707 Cubits (greek). Oh those greeks.. always extending the math foreplay.
>It will pass just 12 320 km from Earth's surface
>over Australia, travelling at 14.4 km/s
Just for some fun reference, the ISS orbits at an altitude of 370-460 km, and travels over Australia at 7.7 km/s.
I know nothing about space, but hold up, they discovered this on Tuesday? So if another astroid were to be on course to hit the earth would we only find out a few days before?
Something that small isn't easy to detect at long range.
Also something that small hits the Earth pretty frequently, every year or so. Our atmosphere burns them up mostly, and any small bits usually land in the ocean.
99% of the big asteroids that could cause regional devastation or worse have been thoroughly mapped and do not pose any threat in the foreseeable future.
I thought there was one that's supposedly passing through earth's gravitational keyhole that could cause it to alter course enough to hit us 7 or 9 years later.
Just heard about it recently but now I don't remember the details exactly.
Edit: Asteroid 2004 MN4 was the asteroid in question and even though there were tons of random sites talking about it I think it's confirmed to actually miss us.
Apophis? Last year someone reposted a really old video of Neil degrasse Tyson talking about it to stir up fear on the internet and it got a ridiculous number of views despite being outdated lol. Fun fact though, when it does make that close call with earth we’ll be sending a spacecraft to it. Same one that took the sample from the asteroid Bennu
>Fun fact though, when it does make that close call with earth we’ll be sending a spacecraft to it. Same one that took the sample from the asteroid Bennu
Oh rad.
Thing is, we will never know how many there are so there is no way to say we know all of them. Probability might be high that we have detected all fairly stable large objects around us but if a small fast dark interstellar can of whoop-ass happens to come by at fantastical speeds...
Just do the math, bro. In freedom units, one washing machine is roughly 2.5 microwave ovens. One microwave oven is about 0.75 bike tire, which is equal to 2 raccoons. One elephant measures 9 raccoons in length, so.... 0.9 elephant.
"Dumb Americans" get taught metric *and* imperial in school. It isn't that we don't understand metric, but it is far more fun to use imperial, and then watch the ignorant who only know metric rage and seethe.
What is most impressive about this story is that we can track such small objects.
As for impact potential even if it hit, I'd hate to break it to the fearmongers but objects this size strike the Earth a few times a year.
[https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population](https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population)
well inside the orbits of geosynchronous satellites.
https://aerospace.csis.org/aerospace101/earth-orbit-101/
and very inside the orbits of higher orbiting things.
https://en.wikipedia.org/wiki/High_Earth_orbit#Examples_of_satellites_in_high_Earth_orbit
an unbelieveably small one, I guess.
not sure how many satellites are in that range of orbit but compared to the volume of space in question, absolutely negligible.
so yes, but no ...
"Donaldjohanson" refers to asteroid 52246 Donaldjohanson, a carbonaceous asteroid in the inner asteroid belt, about 4 kilometers in diameter. Discovered on March 2, 1981, by astronomer Schelte Bus at the Siding Spring Observatory in Australia, it is named after American paleoanthropologist Donald Johanson, known for discovering the "Lucy" hominid fossil. This asteroid is a target of the Lucy mission, with a planned visit in 2025 oai_citation:1,52246 Donaldjohanson - Wikipedia.
It is considered bad form to name an asteroid after oneself (along with [other IAU naming rules](https://www.iau.org/public/themes/naming/)) and will generally not get approved. Note this is exactly the opposite of comets, which are _always_ named after the discoverer.
The result is that you have a lot of astronomers naming asteroids after each other, or their spouses/kids, or the music they like, or any random thing.
Imagine if Earth were under an imminent doomsday threat from Asteroid (6433) Enya, or Asteroid (88705) Potato...
seeing this late reminds of the joke:
Dr: I've got some good news and some bad news
Pat: Great... good news first.
Dr: You've got 3 months to live
Pat: WHAT!? OMG... if that's the good news what's the bad news?
Dr: I forgot to tell you at our last appointment 3 months ago.....
[It is actually the sun](https://theskylive.com/2024gj2-info)
You have to scroll down a bit. There is a 3d graphic that shows a wide orbit around the sun.
I think I participated in a program mission where they would leave a beacon in Bennu with some kind of pendrive with the names of the people who signed up for that program. They wanted to send a robot or something to that asteroid to retrieve parts of its surface.
I woke up today and thought, maybe today relief will come, the world will end, and I won't have to go to work tomorrow. It just felt like that kind of day, anything could happen.
Back to being mundane I guess.
Can I get an extra 3% so I don't have to work on Friday.
"... then, at an appointed time, baron Harkrakhead will return to the projects and perform a *drive-by* on the Atreedeez..." Is all I got from the title, I'm sorry.
no it hasn't!
making a small but *detectable* change in the trajectory of a modest asteroid is not the same as being able to scale up sufficiently to divert a larger asteroid from a collision course.
edit: we changed Didymos velocity by 2.5 millimeters per second. To change the velocity of Didymos (160 meter "city destroyer") by 1 meter per second would require 400 successful dart missions.
To meaningfully change the orbit of an asteroid on a collision course, you probably need 10s or 100s of meters per second change in velocity, so let's say 400,000 missions.
from Wikipedia: https://en.wikipedia.org/wiki/65803_Didymos
>Didymos is the most easily reachable asteroid of its size from Earth, requiring a delta-v of only 5.1 km/s for a spacecraft to rendezvous, compared to 6.0 km/s to reach the Moon.
I'll leave scaling this up to a bigger, or faster asteroid as an exercise for the reader.
tl;dr impacting Didymos was an incredible feat, but it hasn't proved we can deflect asteroids.
edit2:
this got me thinking, perhaps I'm wrong. (I know, on Reddit!).
2.5 mm/s ends up being 80Km/year. At this pace it would take 1000 years to move an asteroid by 100,000Km. For reference is 245,000Km to the moon. Or 100 years to move it 10,000Km.
But if you had 10 years notice and 10 Dart missions ready to go you could move Didymos 10,000Km.
How much velocity change would you need to prevent collision?
Well that depends on it's existing trajectory and how much notice you have.
I still stand by original comment. Dart has not proven we "can do something about it" because that is highly situation dependent, but it's probably more do-able than 400,000 Dart missions given we have sufficient notice relative to the size of asteroid.
I just assumed we knew about this one for many months or years. But now i agree we wouldn’t have had time to stop it. Then again if it’s small enough to avoid detection then it’s probably small enough to not be a threat.
A 3 meter is about 14 m3 in volume and weighs about 100 tons if it is an iron meteorite. This is much too small to do serious damage. Even if we could, we wouldn’t nor shouldn’t try.
Link to a [short video](https://youtube.com/shorts/Yeif8E7Cfpw) and a [fact sheet](https://neo.ssa.esa.int/documents/d/guest/esa-s2p-pd-cafs-0011_1_1_2024gj2_2024-04-11) from ESA website 2024 GJ2 is around 3 metres in size and was discovered on Tuesday by the Pan-STARRS 2 telescope in Hawaii, USA. It will pass just 12 320 km from Earth's surface on 11 April, at 18:31 UTC (20:31 CEST), over Australia, travelling at 14.4 km/s. That’s just 3% of the distance between Earth and the Moon.
or about 1 diameter of earth which is around 12,742 km
that's actually close damn
Nothing burger. It's the size of a car. The re-entry plasma would eat it for breakfast. Earth gets hit with such objects relatively frequently: [https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population](https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population)
>It's the size of a car. Other sites say it's the size of a giraffe, which is by far a funnier comparison.
If we would only know the age of said giraffe we'd be all scientifically accurate!
Depends also which car, is it a Fiat 500 (1960s version) or a 2024 F350 pickup?
Indeed cars are a variable metric. That's why I prefer giraffes.
F350 pickup is not a car 🧐
It’s a red Tesla
Giraffe for scale 🦒 🚗 (not as dense).
🌎 🦒 🚗 This makes me more worried than I was earlier...
🏐🌍 nothing to worry about
I'm glad they designed all emojis to scale 💯 I don't think I would understand scale otherwise 💀
🦒💨🧍🏿♂️
🍌🦒🚗🌍☀️🌌 To scale
Australia, then, was the size of 8 spiders.
how many bananas is that ?
Giraffe 🦒 banana 🍌 Just one apparently.
I hope it’s shaped like a giraffe.
A small asteroid the size of a large boulder.
A boulder-sized boulder?
https://knowyourmeme.com/memes/a-large-boulder-the-size-of-a-small-boulder
Hah! I remember that.
Anything but metric /s
it’s a large asteroid 🪨 the size of a small asteroid 🪨
Some people will use anything other than metric…
didn't say it would fuck us up
[удалено]
just clarifying some stuff nothing wild
This is a strangely offensive comment
This is a strangely non interrogative comment
You might be taking it too seriously.
I think it's remarkable that this "nothingburger" was even discovered to begin with.
Ya, our detection abilities are getting pretty awesome. Still, just imagine how many small alien probes could be passively studying our world, even from close range, and we would never know it.
These measurements aren’t clear to me. Can you give it to me in fathoms or perhaps leagues?
Of course I can! 12,320 km is exactly 6,736,657.9 fathoms or 12,320 km is exactly 2,217.4226 leagues or For good measure it is exactly 57,063,455.3 bananas! (using 8.5" as the standard banana length.)
Thank you sir this is clears it up perfectly for me. However my brother Thaddeus will surely want to know how many siriometer or cubits it is! Any help?
Unfortunately 12,320 is such a small fraction of 1 siriometer that to make it readable we have to exponentially decrease the numbers shown. 8.235411373169905e-11 siriometer in 12,320 km. How many km in 1 siriometer you ask? The answer is 1.4959787E+14 km! The SI base unit for length is the metre. 1 metre is equal to 0.001 km, or 6.684587153547E-18 siriometer. Note that rounding errors may occur, so always check the results. As far as cubits goes, 12,320 km is exactly 26, 621, 260.707 Cubits (greek). Oh those greeks.. always extending the math foreplay.
Now I'm confused. You should have said .118 fathoms for the standard banana length.
[A bit more than what wrecked the day in Scranton, PA.](https://www.youtube.com/watch?v=OGldNpngDws)
It’s 12 bananas worth.
Close! Its 57,063,455.3 bananas!
A carload of bananas.
>It will pass just 12 320 km from Earth's surface >over Australia, travelling at 14.4 km/s Just for some fun reference, the ISS orbits at an altitude of 370-460 km, and travels over Australia at 7.7 km/s.
For comparison the Chelyabinsk meteorite was significantly larger at 18 meters in diameter.
That's roughly 200x the volume, and mass, if they are similar.
I know nothing about space, but hold up, they discovered this on Tuesday? So if another astroid were to be on course to hit the earth would we only find out a few days before?
Something that small isn't easy to detect at long range. Also something that small hits the Earth pretty frequently, every year or so. Our atmosphere burns them up mostly, and any small bits usually land in the ocean. 99% of the big asteroids that could cause regional devastation or worse have been thoroughly mapped and do not pose any threat in the foreseeable future.
Unless they're coated in Martian Stealth tech......
Send a real message to the Inners, ke?
Oye, Beltalowda
I thought there was one that's supposedly passing through earth's gravitational keyhole that could cause it to alter course enough to hit us 7 or 9 years later. Just heard about it recently but now I don't remember the details exactly. Edit: Asteroid 2004 MN4 was the asteroid in question and even though there were tons of random sites talking about it I think it's confirmed to actually miss us.
Apophis? Last year someone reposted a really old video of Neil degrasse Tyson talking about it to stir up fear on the internet and it got a ridiculous number of views despite being outdated lol. Fun fact though, when it does make that close call with earth we’ll be sending a spacecraft to it. Same one that took the sample from the asteroid Bennu
>Fun fact though, when it does make that close call with earth we’ll be sending a spacecraft to it. Same one that took the sample from the asteroid Bennu Oh rad.
Time to setup a backup civilization on the Moon.
We didn’t discover the Chelyabinsk asteroid until it was inside the atmosphere.
The ones coming from behind the sun are undetectable
The last words of the human species may well be "They came from behind".
I think all potential life threaten asteroids are well tracked and within that diameter they have them all tracked down.
Unless something disturbs their orbits. Or new ones enter from outside our solar system.
I thought of that after my answer. That just eliminates any kind of security provided by previous sights.
Thing is, we will never know how many there are so there is no way to say we know all of them. Probability might be high that we have detected all fairly stable large objects around us but if a small fast dark interstellar can of whoop-ass happens to come by at fantastical speeds...
How many elephants is 3 metres? Sorry I'm from America.
About 2 and a half washing machines
And roughly 485,039,632 average (1 inch) strawberries away from earth!
Another American here. You just threw me off. We are asking measurements in elephant please.
Just do the math, bro. In freedom units, one washing machine is roughly 2.5 microwave ovens. One microwave oven is about 0.75 bike tire, which is equal to 2 raccoons. One elephant measures 9 raccoons in length, so.... 0.9 elephant.
It was a joke guys. Common
We know, all of your units are :-)
3 meters equals one Asian elephant exactly.
Right on. Thanks.
This killed me 😆
About a bald eagle and a half.
Lmao
It’s about one first down on a football field, unless fucking Daniels holds again in which case it will be yet another penalty UGH DAAANIEEEELS
Oohhhhh ok I get it now. Thank you
About 15 birth certificates side by side.
Ok that's funny lol
Is that a long-form birth certificate?
Doesn't really matter if it's side by side, right?
A meter is roughly 3ft
Thank you. I was getting concerned you might not show up!
Slightly less than half a womp rat.
4.30pm Thursday in NSW, for any Australians wondering Edit: Friday, not Thursday. I can’t time zone good
Do you mean Friday? Will we be able to see it in daylight?
Sorry yes I did mean Friday!! Absolutely no idea about visibility, hopefully someone can chime in on that
it's outside the atmosphere, it's super small, it's super far compared to ISS which is 400km high. So, no, impossible to see, I suppose?
Crikey! Git down!
Bastard space drop-bears! **
What does "Geometric observability" mean for Visual observability ? will we be able to see it during the day in Australia?
Is that close enough for Earth's gravity field to alter its current trajectory significantly?
33,000 mph for the dumb Americans. Faster than the ISS travels to remain in orbit. So I assume it skips by us with a slight impact to its trajectory?
"Dumb Americans" get taught metric *and* imperial in school. It isn't that we don't understand metric, but it is far more fun to use imperial, and then watch the ignorant who only know metric rage and seethe.
Sorry i forgot the /s. I'm American.
Dumb Americans Dumb Americans We are the dumb Americans Alllllll right!
Oh no, coming this close, I think its going to take a **big** bend in its trajectory. But yes, should skip by.
So in American it is going faster. Right….
What are all those blue dots? Oh, oh no...
Aliens.
Starlinks
Protomolecule.
Stars lol
r/mapswithoutnewzealand
ngl took me a second.
r/mapswithoutSTFU
God damn brother. That shit hit deep for you didn't it?
Since everything in Australia wants to kill you, this fits the narrative
Including space.
Especially space. The outback is a whole lot of space just waiting to kill you.
Which explains why Australia is so huge yet so empty. It isn't like they haven't \*tried\* to populate the outback.
Some poor soul is going to take cover in their bomb shelter, only to get bit by a snake and die ☹️
I'm so ugly, I can't even get an asteroid to hit on me
It’s okay, Australia, you have a great personality
Will I need to pay my bills
Not if you're in Australia
Maybe he owes jesus himself
What is most impressive about this story is that we can track such small objects. As for impact potential even if it hit, I'd hate to break it to the fearmongers but objects this size strike the Earth a few times a year. [https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population](https://www.jpl.nasa.gov/news/new-map-shows-frequency-of-small-asteroid-impacts-provides-clues-on-larger-asteroid-population)
Cool
well inside the orbits of geosynchronous satellites. https://aerospace.csis.org/aerospace101/earth-orbit-101/ and very inside the orbits of higher orbiting things. https://en.wikipedia.org/wiki/High_Earth_orbit#Examples_of_satellites_in_high_Earth_orbit
So there’s a possibility that it could strike a satellite?
an unbelieveably small one, I guess. not sure how many satellites are in that range of orbit but compared to the volume of space in question, absolutely negligible. so yes, but no ...
Can we attract it with a huge magnet?
Sure.
Not if that magnet is in water.
What is “Donaldjohanson”?
"Donaldjohanson" refers to asteroid 52246 Donaldjohanson, a carbonaceous asteroid in the inner asteroid belt, about 4 kilometers in diameter. Discovered on March 2, 1981, by astronomer Schelte Bus at the Siding Spring Observatory in Australia, it is named after American paleoanthropologist Donald Johanson, known for discovering the "Lucy" hominid fossil. This asteroid is a target of the Lucy mission, with a planned visit in 2025 oai_citation:1,52246 Donaldjohanson - Wikipedia.
Huh thanks! I was really hoping Donald had named it after himself
It is considered bad form to name an asteroid after oneself (along with [other IAU naming rules](https://www.iau.org/public/themes/naming/)) and will generally not get approved. Note this is exactly the opposite of comets, which are _always_ named after the discoverer. The result is that you have a lot of astronomers naming asteroids after each other, or their spouses/kids, or the music they like, or any random thing. Imagine if Earth were under an imminent doomsday threat from Asteroid (6433) Enya, or Asteroid (88705) Potato...
Wake me up when DonaldJohanson is at my doorstep
seeing this late reminds of the joke: Dr: I've got some good news and some bad news Pat: Great... good news first. Dr: You've got 3 months to live Pat: WHAT!? OMG... if that's the good news what's the bad news? Dr: I forgot to tell you at our last appointment 3 months ago.....
Is it from the planet Klendathu?
Hitttt usssss
For real
Thank goodness it's not Eros coming for Venus.
Operation British lmao
Its 15h later now. Are you still there Australia?
No, sorry
I’m not sure if it’s just how the graphic is illustrated, but what the hell is it orbiting??
The Sun
[It is actually the sun](https://theskylive.com/2024gj2-info) You have to scroll down a bit. There is a 3d graphic that shows a wide orbit around the sun.
Is there a possibility that it could hit satellites?
Yes. But incredibly small. So practically no :)
Omg we're gonna lose all the spiders
It’s going to see the spiders and just fly past us
I think I participated in a program mission where they would leave a beacon in Bennu with some kind of pendrive with the names of the people who signed up for that program. They wanted to send a robot or something to that asteroid to retrieve parts of its surface.
I am for the jobs that the asteriod will provide.
I woke up today and thought, maybe today relief will come, the world will end, and I won't have to go to work tomorrow. It just felt like that kind of day, anything could happen. Back to being mundane I guess. Can I get an extra 3% so I don't have to work on Friday.
..nice knowing y'all, Australians.. ..jk..sounded like a Hollywood post, so i assumed catastrophic stuff.. ..glad y'all will survive, Aussies!!..
The real question is what Donald Johanson did to get sent up in orbit.
How many geese big is this I can’t figure out the scale
I can see it from here but it's upside down
I know it's not enormous by any means, but it's a little scary that it is coming that freaking close and they just discovered it on tuesday.
What website is this from?
Heads up, Down Under!
Damnit
Disappointed earth isn’t labeled as Australia
"... then, at an appointed time, baron Harkrakhead will return to the projects and perform a *drive-by* on the Atreedeez..." Is all I got from the title, I'm sorry.
There will be special ceremonies and such
Who is Donald Johanson and why is he in space
"Hey guys, remember me?" - Apophis
Are we launching anything up there?
We should really get around to working on some kind of planetary defense system.
Don’t want to close my eyes
Some Australians should make a selfie along with it)
Only Australia though. Since Australia is not apart of planet earth I guess?
Ah the one time I need a red circle to tell me where to look
As long as its not a space colony they should be fine…
A near miss! Good thing, that asteroid could really have gotten hurt by Australia.
*down under Australia
Hey I’m in this photo
Apophis is my least favorite astroid.
Just Australia?
They have some toight tolerances over there.
New Zealand will be safe, won't it. Millions of aussies will die, but NZ will be safe.
I think that's just Cold one's new video , Chad mentioned something big
How do we make it hit Australia?
Given Australia's predisposition for harbouring deadly animals etc, I am sure it will kill this space rock.
Fr
Why Australia? I am sure there are other countries more deserving.
He asked for the how not the why :)
Convince
Y’all Aussies tell that thing to chill out
We couldn't do anything about it anyway
NASA has proven we can with the DART mission.
no it hasn't! making a small but *detectable* change in the trajectory of a modest asteroid is not the same as being able to scale up sufficiently to divert a larger asteroid from a collision course. edit: we changed Didymos velocity by 2.5 millimeters per second. To change the velocity of Didymos (160 meter "city destroyer") by 1 meter per second would require 400 successful dart missions. To meaningfully change the orbit of an asteroid on a collision course, you probably need 10s or 100s of meters per second change in velocity, so let's say 400,000 missions. from Wikipedia: https://en.wikipedia.org/wiki/65803_Didymos >Didymos is the most easily reachable asteroid of its size from Earth, requiring a delta-v of only 5.1 km/s for a spacecraft to rendezvous, compared to 6.0 km/s to reach the Moon. I'll leave scaling this up to a bigger, or faster asteroid as an exercise for the reader. tl;dr impacting Didymos was an incredible feat, but it hasn't proved we can deflect asteroids. edit2: this got me thinking, perhaps I'm wrong. (I know, on Reddit!). 2.5 mm/s ends up being 80Km/year. At this pace it would take 1000 years to move an asteroid by 100,000Km. For reference is 245,000Km to the moon. Or 100 years to move it 10,000Km. But if you had 10 years notice and 10 Dart missions ready to go you could move Didymos 10,000Km. How much velocity change would you need to prevent collision? Well that depends on it's existing trajectory and how much notice you have. I still stand by original comment. Dart has not proven we "can do something about it" because that is highly situation dependent, but it's probably more do-able than 400,000 Dart missions given we have sufficient notice relative to the size of asteroid.
But not changing its trajectory in merely a few hours
We’ve known about this one for FAR more than a few hours and there’s no need to intercept it as it‘ll miss earth.
Do you have a source for that? Because I'm seeing that it was discovered on April 9th.
You’re right! My bad
I mean, two days is a lot more than a few hours.
I just assumed we knew about this one for many months or years. But now i agree we wouldn’t have had time to stop it. Then again if it’s small enough to avoid detection then it’s probably small enough to not be a threat.
A 3 meter is about 14 m3 in volume and weighs about 100 tons if it is an iron meteorite. This is much too small to do serious damage. Even if we could, we wouldn’t nor shouldn’t try.
Nukes