The current largest digital CCD camera is that of the [Vera C. Rubin Observatory](https://en.wikipedia.org/wiki/Vera_C._Rubin_Observatory#Camera)<sup>1</sup> which has **a whopping 3.2 gigapixels**. The previous largest features on the Panoramic Survey Telescope & Rapid Response System (Pan-STARRS), and has a resolution of ~1.4 gigapixels.[[1]](https://www.symmetrymagazine.org/breaking/2009/10/06/the-largest-ever-ccd-digital-cameras-will-explore-the-universe#:~:text=It%20will%20be%20the%20largest,camera%20which%20has%201.4%20gigapixels.)

Based on the spec sheet provided by the Vera Rubin Observatory, the LSST camera has a resolution of roughly 0.2 arcseconds per 10 $\mu$m pixel. It is about 5 feet (1.2 meters) wide and weighs over 6000 lbs (2721 kilos, $2.6\times10^9$ dyn).[[2]](https://www.lsst.org/about/camera#:~:text=The%20LSST%20Camera%20is%20designed,pixel%20sensitivity%20vs%20pixel%20resolution.&text=The%20detector%20format%20employs%20a,total%20of%20about%203.2%20gigapixels.)

Cameras of this size often have pointing, calibration and recording issues. These sources of error are usually extremely well understood, but it's still interesting to see. Pan-STARRS has a detailed list on their data site[[3]](https://panstarrs.stsci.edu/). These issues include: 

* Randomly missing data that gets filled in later
* Pointing errors related to astrometric positions of their targets
* Registration issues near the celestial pole resulting in poor photometry


<sup>1</sup>formerly known as the Large Synoptic Sky Survey or LSST. The acronym has now been repurposed: https://astronomy.stackexchange.com/q/34647/7982