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These cameras are tiled from CCD sensors, inevitably leaving gaps in the coverage. I believe most large telescopes compose multiple images with slightly differe
by dtgriscom 4y ago
These cameras are tiled from CCD sensors, inevitably leaving gaps in the coverage. I believe most large telescopes compose multiple images with slightly different pointing into a single image with full coverage. With (two) 15-second exposures, will Vera Rubin do this, or will they live with the gaps?
- DiogenesKynikos 4y agoVera Rubin / LSST is going to image the sky so many times (hundreds of visits to each part of the sky) that small chip gaps in individual images won't matter in the end. The survey strategy is driven by completely different concerns, such as detection efficiency for asteroids or supernovae. Cosmetic issues like chip gaps are not a major concern.