As I write this, a crew of LCO engineers, IT specialists, and scientists is traveling to Cerro Tololo. Their mission is to install the first element of the NRES (Network of Robotic Echelle Spectrographs), as well as to do some site maintenance work. The work will require that they shut off the power to all of our telescopes at the site. The site will be unavailable for science observations on the nights of March 1 & 2. The commissioning of the first NRES element will begin on March 4. The spectrograph will be tested with input from the telescopes in Domes B & C, but it's not yet clear which telescope will be used on which night.
The 1m telescope in Dome A, the 0.4m telescope, and the ASAS-SN telescopes will continue routine science observations during NRES commissioning.
