开云体育

The owners manual states that I can record PEC, by manually guiding for about 4 minutes, taking care not to overcorrect.

I’m curious,…… Can I use PHD2 (short 1/2 second exposures) to do my guiding during pec training, or does it have be done done manually.

I would assume that it makes no difference to the mount itself, so this is more of a “has anyone done this with phd2 successfully, or will phd2 overcorrect, and cause more problems to the pec training….



Thank you,

Brian Wheeler

I have the following notes for Gemini-1 which allows averaging. I think you'd need to use PEMPro (or GemPro when available) for G-2 and modify accordingly.

1. The first thing you do, is set up your autoguiding camera (say with PHD2), and let it calibrate.
2. While PHD2 is running (autoguiding), use the Gemini handset to go to the PEC menu, and start the TRAIN PEC. “Setup →Mount Parameters →PEC→Train PEC”
3. That will complete in about 4 minutes. As soon as that is done, you just run the same thing again (run #2). “Setup →Mount Parameters →PEC→Train PEC”
4. After run #2, go to the commands: “Setup →Mount Parameters →PEC→Average Data”
... now repeat the next 2 lines... until you have at least 5 training sessions averaged ....
5. Start PEC run (#3, etc) with the commands: “Setup →Mount Parameters →PEC→Train PEC”
6. then add that to the average with: “Setup →Mount Parameters →PEC→Average Data”

HtH
David

Hi Brian,

Absolutely, you should be using an autoguider rather than manually guiding. Last time I guided manually (to image or to program PEC) was in the early to mid 90's :) If you're worried about overcorrection, you can always lower the aggressiveness of the autoguider. As long as your DEC drift isn't large, I'd also turn off DEC corrections when programming PEC.?

Regards,

? -Paul