Next: The Setup Comps Command
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Up: HYDRA INSTRUMENT USE
Next: The Setup Comps Command
Previous: Sample of Setup Observe Command
Up: HYDRA INSTRUMENT USE
Wavelength calibrations are made by moving a screen over the fibers and illuminating the screen with a bank of Hollow-Cathode tubes. Either Th-Ar or Cu-Ar sources are available. To switch sources, the OT must swap a connection located on the fork of the telescope underneath the instrument.