PEC Work Flow

The process of using PEMPro is very simple, but you should use a telescope and CCD camera that provides at least 1.5 arc-seconds/pixel resolution for the best results.

1. If you are not using a video camera run the Calibration Wizard to set up important parameters needed to get an accurate result. If you are using a video camera there is a separate procedure here.
2. Acquire periodic error data with the telescope mount's PEC feature disabled. Details...
3. Analyze/create a fitted periodic error correction (PEC) curve to the data. Details...
4. Program the mount with the PEC curve. Details...
5. Verify periodic error has been reduced by acquiring periodic data again, this time with the mount's PEC feature enabled.
6. Compare the periodic error has been reduced.
7. If not the curve may have been inverted. See the troubleshooting section for more information.
8. If periodic error has been reduced you are done!

Mounts supported by PEMPro

Please click this link for a list of mounts supported by PEMPro.

 

IMPORTANT: PEMPro can upload PEC data directly to some mounts. You should use the procedure below if your mount is one of these types:

Astro-Physics 3600GTO, 1200GTO with GTOCP3, 900GTO with GTOCP3, Mach1 GTO, and other mounts using the AP GTOCP3 controller

Celestron CGE, CPC, and Nextstar Mounts

EQMOD controlled mounts including Orion Sirius EQ-G, Orion Atlas EQ-G, EQ6, EQ5, etc.

Gemini G-42 Pulsar Equipped Mounts

Mounts with Gemini Level 4

Meade LXD-75, LX-200GPS and LX-200R, and LX200-ACF

Meade RCX-400

Meade Classic 16"

Software Bisque Paramount GT1100S, Paramount ME, and Paramount MX