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MP 2022 BB
The MP 2022 BB has a predicted close approach on the evening of 2022 Jan 25 for North America & the morning of Jan 26 for Europe. The predicted peak brightness is 16.4 magnitude ~1800EST - twilight. Here is the predicted path as seen from the Houston, TX area: [attachment=2231]

The sky will still be too bright to observe at maximum brightness from Houston, unfortunately. Farther east the sky will be darker. At least we get a few days warning for this one & it's moving fairly fast. Today I downloaded the MPC's NEAs at Today's Epoch & MPCORB (in that order - probably should have reversed it). Back over 10^6  MPs in the database.

Good hunting,

Phil S.
It will be interesting to see if we get a few more days of observations by the big guys.

Looks as if Steward Observatory, Mt. Lemmon Station will get 3 more cracks at it during dark hours (04UT Jan 23 [now], 24, & 25) after the end of Astronomical Twilight. Might strengthen the uncertainty a bit.
CNEOS had the close approach time as +-18 min, condition code 7.

Phil S.
Just saw this on

SUPER-FAST ROTATING ASTEROID: On asteroid 2022 AB, one day is only 3 minutes long. Amateur astronomer Filipp Romanov proved it on Jan. 20th when the asteroid flew past Earth almost 10 million km away. "I monitored the flyby using a 14-inch telescope in Canada," he says. "And I measured the asteroid's light curve." Here it is:

"The spin period is only 182 seconds," says Romanov.

Believe it or not, this is not the fastest-known spinning asteroid. It's not even in the top 10. Astronomers have discovered 97 space rocks with shorter days than 2022 AB. The fastest is 2017 QG18 with a spin period of only 24 seconds.

How can asteroids spin so fast? Small asteroids like 2017 QG18 (width=10 meters) and 2022 AB (width=70 meters) get their angular momentum from collisions. Glancing blows from other asteroids spin them up, creating asteroid "days" of incredible brevity. Larger asteroids spin more slowly.
Wow! That's cool.
Clear skies,
Head Dude at Skyhound
interesting. As I have it as 4 million kilometers when high on the 20th. I have it 10 million kilometers away on Jan. 10th. And 861,829Km on close approach to Mt Lemmon Jan 26.786167386.

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