Weather: Cloudy, windy and blowing snow due to clear by dinner this evening, which will make for a beautiful sunset dinner. Temperature -70F, windchill -109F. Though the sun in technically below the horizon (nearly completely) the atmospheric refraction makes it look as though it is still fully above the horizon.
Tonight we prepare for a most delicious dinner, which the head chef woke up at 0130 this morning to begin preparing! We celebrate the Sun setting, and the last visibility of the Sun for 6 months (well… we have a few days of visibility left due to atmospheric refraction).
With the setting of the sun also comes the change-over to SPT3G winter observing (which is just a different 1500degree field of view, which would be contaminated by the Sun during the summer). We also have to beef up the heating in the receiver cabin of the telescope because it is getting quite cold and windy outside and we don’t want our electronics to get too cold.
Other than that, we continue work as normal.
Allen's South Pole Winter-Over 2020 (+) 