GeminiFocus 2015 Year in Review | Page 58

software acts autonomously, ensuring the telescope and dome are safely parked, closed, or stopped, even with the loss of commercial power. The first trial run was part of our “gradual descent” strategy, which broke down the work into 17 manageable pieces (work packages) that followed different schedules. The second run started on October 12th, and we ensured that all SOSs had opportunities to use the summit configuration and learn how to operate in base facility operations mode, before attempting remote operations from Hilo. Figure 3. Sample of data from the Gemini North CloudCam system. Figure 4. Eduardo Tapia (left) and Gustavo Arriagada (right) work on the remote sensing system which is now mounted on the roof of the Gemini North Maunakea support building adjacent to the telescope. 56 if what we have developed and tested works in the real remote observing configuration. During base operations trial runs, several systems were tested, which included a set of five Cloud Sensing Cameras (strategically located on the roof of Gemini’s support building), two external surveillance cameras, one external fog camera (equipped with a remotely operated flashlight), five internal pan tilt cameras (located in the observing floor), and two sets of environmental sensors (designed to measure humidity, temperature, and detect the presence of snow, ice, and rain). In November, the third trial run focused on operating from the base facility, while still having personnel on the summit — at the very least at the beginning of the night. SOSs were able to open and close the upgraded primary mirror covers from the base facility control room. This was a big milestone for BFO, since, as mentioned, it was necessary to modify th R6