Maintenance, Upgrade, Repair

Instrument maintenance, upgrade and repair are an opportunity for us to visit again instruments in Chile. Typical upgrades are motions or detector upgrades. Failures can happen too and are unavoidable, especially considering the huge amount of components and subsystems installed at the telescope. For example shutters are sensitive units with a limited lifetime and can fail after years of use. These stages are again organised and performed in close collaboration with ESO Chile staff.