Staff: Rick; Chris has the day off. Chenning on site all day. Busy day.
Chris noticed yesterday evening that the trailer tower batteries were low and asked that they be changed.
Morning was overcast and cool, virtually no wind (again). After Chenning and Rick did the morning sounding, they headed out to the array to tend to Chenning's equipment (DTS?) and to swap out batteries at tt.
10:30-12:00PDT: cloudy and light rain.
Noticed that T, RH, Rfan variables were not reporting on 28m.t0. Consulted with both Gary and Chris about how to troubleshoot. Ultimately, late in the day (16:30PDT), ended up power cycling the ttt dsm. As far as I can tell this evening, it did not help.
Also looks like ISS1 plots stopped around 3:00PDT. Trying to troubleshoot that. Again, phone call with Gary (it's Sunday!) - It may be related to the USB drive on ISS1 that has been hanging things up for the past several days – Gary has been battling with it. Wanted to reboot, but not sure how to get the profiler codes back up and running. Consensus – wait until Monday morning until more troubleshooting resources available.
Chenning and Rick on the 15:00PDT sounding. Winds from the south, diffuse sun.
ISS1 trailer A/C is acting up: trailer temperature had climbed to 80F, but A/C not coming on. I fiddled with it quite a bit – it would come on for short periods but not cool to target temp. The display showed "check filter". Phone call with Josh (it's Sunday!) and he thought perhaps this newer type A/C might be sensitive to the state of the filter. Attempted to clean it, but the A/C still seems flaky. At Josh's suggestion, left the trailer with the window open and a fan pointed at the rack – the desert night should cool things down significantly.
Stephan de Wekker and a student arrived around 17:00PDT. I helped them retrieve a portable solar generator they had sent to the site. He will converge on the site the next 5 days with 14 students, conducting drone flights at the towers. We discussed access to the facilities (noontime lunches and battery recharges at the trailers), tours, soundings, etc. I guided them out to the array, where they surveyed safety considerations and made deployment plans.
Random checks on 449 power supply: low 2.85A, high 2.99A