Th4 “space age news chatterboxes” have speculated that this “bird” is of the ‘big bird slash KH generation” satellites.
We have been using “thermal generation” units for years, now.
It is almost a certainty that this is of the KH series, the question is “Who are they spying on?”. Based on recent revelations regarding the Deep State and the vast conspiracy to overthrow our duly-elected president, I’m not necessarily applauding another spy (photo recon? SigInt?, ???) satellite going up.