Rubin #CommissioningNotes ✍️: On-sky engineering tests continued this week!

The team started tuning image quality control systems in real survey-like conditions. LSST Camera is performing smoothly and has captured over 5,000 sky exposures so far (that’s 15 trillion pixels!)

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🔭 The team continues to prepare for our decade-long survey! This week they began testing automated systems in combinations needed for the survey, like moving between areas on the sky and swapping filters.

“It was fun to see the observatory move and capture data all by itself!”

🔧 The team also continued fine-tuning the telescope’s active optics system, which help support the mirrors to keep images sharp. This fine-tuning work will continue throughout the coming weeks.

So what’s next? With the full moon coming, the team’s focus will shift to in-dome tests and measurements, as well as refining how the telescope points and adjusts during observations.

Read all the technical details: https://ow.ly/KHxR50VMksk

2025-05-02 On-sky Commissioning Update

During the second week of on-sky commissioning with LSSTCam, the Rubin Observatory team concentrated on testing the Active Optics System (AOS) open loop and closed loop components. The objective was to improve stability of delivered image quality while tracking targets over a range of azimuth and elevation angles, and while executing translational dithers, rotational dithers, and filter changes. A typical observing pattern consisted of slewing to a target field, using the AOS closed loop to brin...

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