Oscillations or Wind Shake?
Monday, June 1, 2015 10:14 AM
Problem(s) Encountered:
Several mages showed oscillations in the N/S direction. Telescope
was pointed at dec = -8, h.a. = +1. About half the images in
this position displayed an oscillation. Most of the light
was in the central image, but there were many excursions N/S.
These images are not useable.
Solutions:
Checking the image left, it looks like some wind shake to me. This seems to coincide with the telescope pointed to the S/SW with breezy conditions coming out of the S/SW last night.
Raised the vertical weights from 3125 to 3275 to bias balance slightly to the top. This should keep the secondary anchored a bit more in any gusts.