Deep mosaics processed with SExtractor may have misclassifications of stars to galaxies or vice versa that leads to too few objects in the calculation of zeropoints. One way to avoid this is to allow all objects from the deep catalogues to be matched against good stars from the intermediate. A better method in the longer term is to fix the classification problem.
Used to get 40-50000 frames deprecated due to misclassifications. Now ~1500. Will do a few more checks
Deep mosaics processed with SExtractor may have misclassifications of stars to galaxies or vice versa that leads to too few objects in the calculation of zeropoints. One way to avoid this is to allow all objects from the deep catalogues to be matched against good stars from the intermediate. A better method in the longer term is to fix the classification problem.
Used to get 40-50000 frames deprecated due to misclassifications. Now ~1500. Will do a few more checks