We are now in the fifth week of on-sky commissioning with ComCam. Observations with ComCam are continuing throughout the Thanksgiving holiday week.
Earlier in the week, the pointing model for the Simonyi telescope was verified for elevation angles above 45 degrees and over the full range of azimuth angles. In parallel, the Active Optics System (AOS) commissioning effort has continued testing the open loop look-up tables, including scans of telescope elevation angles and camera physical rotator angles, along with continued testing of multiple wavefront estimation algorithms and optimization of the AOS closed loop system. Together with the increased telescope motion described in the previous update, progress along these fronts has enabled observations of more fields across the sky. Sufficient imaging in both the r and i bands to build templates for difference image analysis testing has now been acquired for six target fields spanning a range of stellar densities, and including a target field near to the ecliptic plane. This week marked the first association of Solar System Object detections across multiple individual visits in Prompt Processing. The team set a new single-night record of 99 in-focus visits taken with Feature Based Scheduler (with the remaining time during the night being used for other engineering activities, including AOS commissioning). The currently loaded filter set is gri as we enter dark time. Recall that ComCam has space for three onboard filters, compared with five for the LSSTCam.