Resume when slew stops
Chris Rowland
AIUI it will stop guiding when a slew is detected, presumably by checking the ASCOM Slewing property, but what happens when the slew stops? Does it auto locate a suitable guide star and resume guiding? If not could it be persuaded to do so? Auto Select Guide star would need to be turned on and a calibration done.
It seems to me that this could make PHD and acquisition applications almost autonomous.
It won't do everything but could make life easier, especially for people who don't need full integration between the image acquisition application and PHD.
Chris R
bw_msgboard
Although this might seem simple at first, I don’t think it’s likely to be very useful and would probably cause more trouble than it’s worth. First, the PHD2 check-for-slew option is optional, placed there only because some ASCOM drivers do a poor job of managing state properties like slewing and IsPulseGuiding. Second, automation is more complicated than just having PHD2 try to deduce that guiding would “probably be a good idea now.” Small centering operations, for example, would often be reversed because PHD2 would simply guide the target back to its original location. Focusing operations when using an OAG can also confound guiding, so guiding should normally be paused at those times as well – and the list goes on. After a lot of work in this area, we now have integration packages available that allow use of PHD2 with a number of popular automation packages including MaximDL, CCDCommander, and CCDAutoPilot. And of course SGP and perhaps others already manage the PHD2 guiding operations directly. I think this is a better approach for us.
If you’re convinced you want to do this, you can implement it yourself outside of PHD2. You can write a script that monitors slewing, then start and stop PHD2 guiding as you see fit.
Bruce
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Andy Galasso
If you’re convinced you want to do this, you can implement it yourself outside of PHD2. You can write a script that monitors slewing, then start and stop PHD2 guiding as you see fit.