What is permanent periodic error correction?
What is permanent periodic error correction?
PEC is a means of reducing errors caused by the mount’s worm gear, as it turns to drive the mount. You can program PEC through any of the three options: PEC – Your hand control comes with PEC and you can manually correct the periodic errors occurring while slewing using a crosshair eyepiece (aka eyeballing it).
How do you calculate periodic error?
Measuring periodic error is usually done by recording short exposed star images over a longer time. The position of the star in the frames is then calculated and converted into the tracking error – periodic error curve.
What is mount periodic error?
Periodic Error is a small mechanical error in the accuracy of the tracking in a motorized mount that results small movements of the target that can spoil long-exposure images, even if the mount is perfectly polar-aligned and appears to be tracking perfectly in short tests.
What can I do about periodic error ( PE )?
Biasing the CGE mount to slightly increase error can actually help such programs. RA can be biased by either dropping or raising the counterweights to slightly imbalance the mount. PEC Tool is a “helper utility” which allows you to record and playback PEC data.
What makes the ioptron ieq30 pro so good?
The iEQ30 Pro offers the next generation GoTo technology from iOptron®. It comes standard with a calibrated dark field illumination polar scope, built-in GPS, and sturdy 1.5 -inch stainless steel tripod legs. Plus, it offers premium performance in an easy-to-transport package. Not off to a good start. Paid extra shipping for 3 day delivery.
How can I correct periodic errors on my PC?
PEC is a means of reducing errors caused by the mount’s worm gear, as it turns to drive the mount. You can program PEC through any of the three options: PEC – Your hand control comes with PEC and you can manually correct the periodic errors occurring while slewing using a crosshair eyepiece (aka eyeballing it).
How does periodic error correction ( PE ) work on Celestron?
Since these errors are part of the scope’s drive and are predictable, they can be evaluated and counteracted to improve tracking for astro-imaging. On most Celestron GoTo mounts, we have a Periodic Error Correction (PEC) feature in the hand control which records guiding corrections over one full turn of the worm gear.