Observation by Mike Mattiazzo: Comet P/2021 N1 was already posted on th...

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BAA Comet Section

Observer

Mike Mattiazzo

Observed

2026 Jun 23 - 00:00

Uploaded

2026 Jul 26 - 22:40

Objects

P/2021 N1 (ZTF)

Full filename

2021n1/2021n1_20260623_mmattiazzo.jpg

Target name

P/2021 N1 (ZTF)

Title

Comet P/2021 N1 was already posted on the NEOCP around June 22 as A11DV3H but the MPC removed it just commenting that Comet P/2021 N1 = A11DV3H (June 22.86 UT) Luckily i was able to follow up with further observations but there needs to be improvements in the recovery process, since removing it from the NEOCP without posting an orbit update, effectively makes it "lost". The comet was over 3 degrees away from the MPC orbit.

About this image
Comet P/2021 N1 was already posted on the NEOCP around June 22 as A11DV3H but the MPC removed it just commenting that Comet P/2021 N1 = A11DV3H (June 22.86 UT) Luckily i was able to follow up with further observations but there needs to be improvements in the recovery process, since removing it from the NEOCP without posting an orbit update, effectively makes it "lost". The comet was over 3 degrees away from the MPC orbit.
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