|
For us Northern hemisphere users checking that checkbox actually means PE data collected with PA=180, not checking it means PE data collected with PA=0 and it doesn't matter which side of the meridian the OTA was pointed. The checkbox is poorly worded. I'm in the Northern hemisphere, always do PE data collection with the OTA on the East side of the mount, pointed to the West side of the meridian with the camera rotated to PA=0. Hence I do not check that checkbox. Confusing, eh? Not to worry, if the PE doubles, just check the checkbox and reprogram it. The whole procedure is supposed to get automated soon anyway.
|