So I'm really digging in, trying to understand my guiding results using logs. I've read every word of PHD2's guide log analysis tutorial (https://openphdguidi..._Guide_Logs.pdf), and understand it. But I wanted to check my evaluation of a recent session here with more experienced guiders.
I set up a few days ago solely for the purposes of improving my guiding. Here are the details...
50mm finder guider
Bortle 9 (Dallas)
I had just adjusted the gear/worm mesh in both RA and Dec to reduce backlash.
Based on what I've learned over the past couple years, and what I read in the PHD2 guid log tutorial, my diagnosis is that I was chasing the seeing too much, and perhaps backlash is some of the problem. Does anyone see something that I'm missing? I'm attaching the guide log for the night. The most puzzling thing is that on one session, the PA error is 0', on anther it's 155', and on another it's 8.2'. But I had set my PA earlier in the night than those sessions (using both Polemaster and PHD2 drift align to check).
So... chasing seeing? backlash? PA? Here's a link to a single 20s sub if anyone wants to see it: https://www.dropbox....s__26C.CR2?dl=0
Any help is appreciated!