Re: Meridian flip - software or firmware issue? #iEXOS-100 #ASCOM #FIRMWARE #pmc-eight

Jerry Hubbell - Explore Scientific VP Engineering

On Tue, May 18, 2021 at 03:25 PM, Jerry Hubbell - Explore Scientific VP Engineering wrote:
If you want to do a Meridian flip "early" you can only do that manually
I forgot to state also that there is a better alternative to doing a Meridian Flip "on-time" The PMC-EIght and driver is fully capable of tracking up to an hour past the Meridian (depending on mount/scope configuration) and if you are in the middle of an imaging run, it is best to not schedule the Meridian flip until at least 5 minutes past the Meridian. I think that this should be possible if you are using an automation program like NINA or APT (I don't know). I use MaxIm dl and it allows me to delay the meridian flip.  This is a better approach than trying to do the flip "early" and will not run into the issue when trying to do a plate solve immediately after the flip causing a pier-side miscalculation.
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at
1010 S. 48th Street
Springdale, AR 72762

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home

Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!

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