Andrew, thanks for the quick response - much appreciated.
I notice that with the RA, our results (for today) are on opposite sides of the virtual SCP (where the coordinates merge). Can this be right?
I also notice that there are 4 minutes difference in Dec (for today) which is surprising.
And I thought it was a simple matter of just printing out a chart with a half degree field and marking the actual position of the SCP.
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