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ARC 3.5m | Instrument Summary

There are six main instruments currently in operation at the ARC 3.5m telescope:

ARCES is permanently mounted at the NA1 (Nasmyth) port and Agile is mounted at the TR2 port, while the other four instruments can be mounted at the NA2 port. Switching between ports using the tertiary mirror can be accomplished in less than 5 minutes. Switching instruments at the NA2 port can be done within 15-20 minutes, allowing for the capability to do rapid instrument changes for target of opportunity observations, or to adjust to different observing conditions.

In addition to the facility instruments, several visiting or non-facility instruments have been used at the 3.5m, and some of these are available to the ARC observing community by contacting the instrument PIs:

Finally, several engineering instruments are also used: