gshennessy

I wish to create a pointing model for my DDM 85. The list of corrections shows many terms that seem to map to a TPOINT like model, but there are two listed corrections that aren't obvious to me. These are Pier Correction RA and Pier Correction DE. Is there documentation to indicate what the formula is applied? For example, in TPOINT collimation is CH and the formula is CH sec(dec) applied to change in hour angle.

I have a DDM 85 basic mount, running autoslew 5.1.1.6. Page 4 of the instructions has a sentence that indicates that refraction is included in calculating the stars position, but I see no further discussion of this. Where is refraction configured? The SkyX apparently takes the position provided by autoslew, and adds refraction to that, so I am worried that I am double counting the refraction effect. Thanks.