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Close Approach of 2022 PW
The newly discovered NEO 2022 PW is predicted to make a close approach according to the CNEOS website on 2022 Aug 16 02:32 ±04:13 UT at a distance of 0.00353 AU. H=25.4, 'Rarity'=1, Condition Code=7. The data arc is only 1 day, hence the uncertainty in the time of close approach.

Using osculating elements for 2022 Aug 7 00:00 UT, ST4v predicts that this NEO will reach a peak brightness of 15.5 magnitude on August 15 04:00 EDT when the MP will be moving northeast through Pegasus at 85.9"/min. The moon will interfere, unfortunately. Here's an Interactive Atlas chart showing the predicted path of 2022 PW:     

Since this NEO was discovered so recently, I'd recommend downloading elements closer to the time of close approach after there have been more observations to refine the orbit. It's still a week away.

I'll post additional information closer to the event as the orbit is refined.

Good hunting,

Phil S.
Hi MP Hunters,

Here's the promised update on 2022 PW. This MP is still on track to reach peak brightness of 15.5 magnitude on the morning of Aug 15 from ~0000-0500 EDT when it will be in Pegasus. It will even attain 15.4 magnitude between 0600-1100 EDT while still in Pegasus moving >95"/min. 

The ST4v ephemeris prediction using the MPC's 2022 Aug 12 0000 UT elements :

Max 15.5 Aug 15@0400 735.0k km 87.0"/min
Min Re 535.1k km Aug  15@2300 16.1 Mag In And 176.0"/min

CNEOS predicts the close approach at 2022 Aug 16 02:47 ± 00:11 UT at a distance of 0.00354 AU. H=25.4, 'Rarity'=1, Condition Code=7.

NOTE: I made an error in the estimated motion in the original post for the motion at close approach. I repeated the motion value for Aug 15 0400 EDT (85.9 "/min) instead of getting the correct value for Aug 15 2300 EDT (~170"/min). Since St4v has updated the orbital elements to those for Aug 12, I can't repeat the calculation without downloading the old elements from HORIZONS & that doesn't seem worth the effort.

This object is still one of the brightest MPs we've had in a while despite the moon's interference. It's even brighter further west.

Good hunting,

Phil S.

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