The image is again posted here for clarity:

That was just the shape of the camera's field of view, caused by the cut-out bit being used for other instruments. It's expensive to haul things into orbit and every little bit of space is used if possible. Compromises are often made. We need "Puddle-Jumpers" to make this stuff easier.rroth@igc.org wrote: ↑Sun Dec 06, 2020 1:55 pm What is masked out in the upper right corner of the image?
I remember wondering this the first time around but now there is this chance to ask, thanks!