Hacker News Reader

Comment by 1over137 | Hacker News Reader

Public service: 9334 km/h.

Also,

> 3 tons of space junk, a punch that will carve out a crater big enough to fit several semitractor-trailers

These are likely US tons, so 2722kg. I'm not sure about the SI conversion of the semitractor-trailer units.

> scientists expect the object to carve out a hole 33 feet to 66 feet across

Oh, so 10-20 meters :-)

> 33 feet to 66 feet across

I loled at this. It was so obviously 10 - 20 meters.

Should probably just say "About 50 feet in size"

> > 3 tons of space junk, a punch that will carve out a crater big enough to fit several semitractor-trailers > These are likely US tons, so 2722kg.

Earlier reports put the mass at explicitly "4 metric tons" [0][1], so it is a bit of a guess either way.

> I'm not sure about the SI conversion of the semitractor-trailer units.

Are we talking Arizona trailers, normal NA trailers or international-compliant sizes to begin with?

2593m/s or 2.6km/s. Not sure if they're more common in the industry, but they certainly are in Kerbal Space Program.

5040 knots, aka nautical miles per hour.

Because if you are using miles, use the only ones that matter (in aerospace).

1.56*10^7 furlongs per fortnight

0.0008649% the speed of light

Would this be its speed relative to the moon?

That is a very interesting question! I wanna know too.

to put that in perspective, that's 4.5 sunradii per fortnight, or .55 AU/year

thank you sir for this.

Many LOL's - Thanks! - I needed That!