... The Instrument Rotator . ... Guiding . ... This manual discusses operation of the Telescope Control Computer (TCC) from a user's perspective. It is intended to help the programmer of the TCC graphical interface, and to serve as a basis for a user guide for that interface. ... This guide should be used in conjunction with the TCC Operator's Manual and TCC Commands Manual . ... After that you may specify the current instrument using SET INSTRUMENT and acquire a target using the TRACK command. ...