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Asteroid ZTm0038 with a >3% impact probability

newton.spacedys.com

11–20 of 252 posts

Re: Asteroid ZTm0038 with a >3% impact probability

#15

I don't really know how to read this page, but it looks like the time of closest approach has already passed - > Closest approach time of impactors: t_min = 2023/08/14 04:48 TDB and t_max = 2023/08/15 12:22 TDB If so then we're all good. Can the poster or anyone else chime in with background on this?

I am not an expert, but my interpretation was the same as yours.

TBD seems to be roughly UTC time. In which case, this passed by 8 hours ago.

Re: Asteroid ZTm0038 with a >3% impact probability

#17
post #11
post #10

Earlier quoted context omitted.

Only 400m in diameter.

How much of that would burn up in the atmosphere if it did hit?

This video has comparisons of devastation that would be caused by different sizes (around 7:50 mark) of asteroids: https://www.youtube.com/watch?v=4Wrc4fHSCpw

Re: Asteroid ZTm0038 with a >3% impact probability

#18
post #10

Earlier quoted context omitted.

How do you tell?

Only 400m in diameter.

... The Chelyabinsk meteor had ~20m of diameter.

The impact energy of a 400m diameter asteroid is somewhere in the same ballpark as the deployed nuclear arsenal of the United States.

Not extinction-level impact, but wherever it hit would definitely feel it.

Re: Asteroid ZTm0038 with a >3% impact probability

#19
post #14
post #11

Earlier quoted context omitted.

How much of that would burn up in the atmosphere if it did hit?

https://www.quora.com/Would-an-asteroid-measuring-400-metres... I googled your question :)

Quora is pretty much unreadable now. Is the main answer just chat gpt? That's how it seems from mobile view. The page is too noisy to navigate for me.
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