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Target acquisition

         USER> source mygalaxy hh mm ss.s dd mm ss b1950
         USER> add
         USER> gocat mygalaxy
The ADD command adds the source name to the catalogue, and the GOCAT command slews the telescope and moves the dome. Then press DO to activate the handset and centre the object on the rotator-centre mark on the TV. Make sure the TV scan-direction switches are pointing the right way.

There is often an offset between the rotator centre and the chip centre (usually smaller than 1 arcmin). You can calibrate this offset, and then account for this when centering the object with the handset.