RE: [open-phd-guiding] last night phd2 stopped calibrating. it kept trying to redo calibration and failed I'm using SGP

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Mar 9, 2021, 5:16:59 PM3/9/21
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Hi Don.  Well, as our British users might put it, this is really a dog’s breakfast. L  I have the feeling you haven’t read any of the PHD2 manual so you’re getting tripped up by really basic stuff.  Please read at least the Basic Use section of the manual carefully, including the section on calibration:

 

https://openphdguiding.org/manual/?section=Basic_use.htm

 

One main point of calibration is that it pretty much takes care of itself if you let it.  Since you’re struggling here, I suggest you get a good calibration at the start of each night then leave it alone.  Don’t keep clearing or forcing calibrations or fool around with any of the Advanced Settings.  It’s pretty easy:

 

  1. Do NOT use exposure times below 1 second
  2. Point the telescope near Dec = 0 and at least 45 degrees above the east or west horizon.  Do NOT do calibrations at high Dec positions, there’s no need
  3. Start looping guide cam exposures in PHD2
  4. Use the mount hand control to move the mount north until you see the stars in the display start to move consistently – this is done to clear the Dec backlash in your mount.
  5. Start the calibration

 

Since you’ve been futzing around with parameters in the Advanced Settings dialog, you may have screwed up the calibration step-size.  For your ‘rasa’ profile, that should be 900ms.  One last time, go into Advanced Settings and restore the correct value:

 

 

If you look in the lower right part of the PHD2 main window, there are some colored icons down there.  One of them says ‘Cal’ – if that’s green, you’re already calibrated.

 

I think it would be best if you familiarized yourself with how PHD2 works and get comfortable with basic operations before you try to use SGP to automate the guiding.

 

Good luck,

Bruce


From: 'dond...@aol.com' via Open PHD Guiding [mailto:open-phd...@googlegroups.com]
Sent: Saturday, March 06, 2021 5:22 AM
To: Open PHD Guiding
Subject: [open-phd-guiding] last night phd2 stopped calibrating. it kept trying to redo calibration and failed I'm using SGP

 

two and three night ago I had great guiding without doing any calibration.  I've checked automatically restore calibration.

 

I don't know how to re-use a prior calibration that worked.  I read best practices but can't seem to figure this out.

 

sgp plate solves, then tries to get phd2 running but fails.

 

I uploaded 3 log files but I can't copy and paste the link.

 

 

 

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