you can use the GPG RA guider with a fixed period.
corrected_RA_rate = calibrated_RA_rate * cos(DEC_at_calibration) / cos(DEC_at_use)
hy wrote: Chris,
Please let me know exactly what you mean by "change the correction" and I can look into it.
FWIW, my ideas about adaptive calibration would probably cover those issues, though it might take a while to adapt.
In my experience, though, unless you're very close to the pole, the guiding angles (and the approximation that the RA
and DEC directions are perpendicular in the image) suffice, especially given the seeing noise.
Lead_weight wrote: This comment isn’t directly related to the new features, but is related to something you mentioned about recalibration. This has caused me problems in the past when NOT guiding. I use non-guided dither pulses, with no guiding on my 10Micron, but after meridian flip, it triggers a recalibration even though I have guiding off, and tries to guide again without dithering since it does not work with non-guided dither pulses.
So I often guide, even though it can make things worse with a 10Micron that doesn’t need correction. Just some extra info to help make an informed decision on recalibration.
Thanks for your work, I will definitely give multi-star a try. Will multi star eliminate the effects of seeing possibly? Does it average out the movement of all the stars?