Sorry for the lack of updates here! Work has kept me busy, and I've had little time to write detailed blog posts.
I'm now also heavily involved with SatNOGS , where I run a few satellite ground-stations. One aspect of this I've really gotten into is the capture and analysis of radio doppler signatures, which can be used to identify unknown satellites. I've written a guide on how to do this here: Using STRF to fit Doppler observations to a TLE
In a similar vein, I'm also slowly learning about orbital dynamics, and how to generate estimates of orbital elements for upcoming rocket launches, to perform pass predictions. I wrote a short guide on this here: TLE Estimation for an Upcoming Rocket Launch