[hermitcrab]

From the first link I get:

"specified object was not found"

What do you mean by 'active' here - has a plume?

[snowwrestler]

I found it by searching an alternate designation:

C/2025 N1

Edit: does this link work?

https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=C%2F2...

[slwvx]

Yes, thanks!