On reviewing last night's alignment run data we found that the quality of the mapped points was insufficient, and would not be usable to create an acceptable pointing model.
Today we have returned to the observatory with the aim of carrying out another alignment run this evening. In preparation for this second alignment run we have adjusted a number of elements of the mount RA drive, in the hope that we will improve the pointing and tracking performance in this axis. We are cautiously optimistic that we have made a breakthrough in this area.. but we won't know for sure until we review the full data set generated by this evening's alignment run.
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