one theory
SPACE JUNK - The ICS-F was cataloged as object 45265, 1998-067RJ. It orbited the Earth as space junk for 3 years, and reentered at 0430 UTC (9.30pm PDT) over California, widely observed from the Sacramento area.
https://www.claycord.com/2023/03/17/strange-lights-in-the-northern-california-sky-were-likely-space-junk-according-to-astronomer/