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Hi Leon
I understand that for general observations, a Lat and/or Long uncertainty of a degree or two isn’t critical for GoTo’s, and a time error of 10 to 15 mins doesn’t seem to have too much affect either in terms of placing the object in the FOV.
Where you do need more precise Lat, Long, Time and altitude above sea level settings, are for tracking man-made satellites, as their proximity to Earth magnifies any location/time errors. I think that satellite observers usually sync their notebooks with atomic time to ensure accurate location/tracking of these Earth orbiting objects.
Cheers
Dennis
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