'''Acquiring a target'''
Before attempting this, you should read about using the [[APD|APD]].
The shabby A4 notebook stored on the bookshelf contains previous "red marker" positions on which to locate a target with the guide mirror in beam. '''Current latest red marker coordinates:''' (218,50) on 23/01/2015. Note that this position shifts slightly after each instrument change, and when pointing far from zenith.