Focus offset measurement automation with Dragscript

[AstroGabe]

I’m starting to get an array system up and running and want to measure my filter offsets. What better way than to use Dragscript to automate it! I’ve cycled through my 7 filters 3x with a RoboStar focus on each filter, followed by a 10s image.

Since the focus position is stored in the FITs header, I use my planner/inspector app to check the consistency of the positions and their offset. You can see some pattern in the focus position where there’s a slight shift to lower focus positions. This is presumably due to the scope continuing to cool through the experiment.

I can also export these data in the inspector into a csv file and compute the offsets from there (I use pandas, but excel works just as well).

[Voyager]

I add this one directly with dragscript

Script to go through autofocusing for each filter and measure offsets

Hi all, First of all, newbie here just start playing with Voyager. I am very impressed with the flexibility from DragScript, and would love to use it to the full. I have a simple idea of automatically run autofocusing through all filters one by one and record focuser position & focuser temperature, and generate the offset map vs. temperature just to know better the system. So I set up this very simple DS below (without safety mechanisms yet), but wonder how to extract the information out of it.…

Thank Gabe