At this moment in time (and space):
www.astronomerstelegram.org/?read=17515
Jehin, E. Hmiddouch, S. Aravind,K. et al. TRAPPIST first post-perihelion production rates of the Interstellar comet 3I/ATLAS ATel #17515, 1 Dec 2025; 09:00 UT
The comet has passed perihelion, is still in the inner Solar System, and was warmed by that solar “passage” (as close as it was- closest it will ever get). This warmth releases more volatiles from the nucleus, which Jehin et al. attempt to view and map with filters on their telescope. This is just a brief communication, pending a more rigorous paper; the authors have included some details of their procedures and results but not much more than Astronomers’ Telegram warrants.