I have been downloading OLCI L1 data using the Ocean Color Web.
from 'select one or more region' I choose The Chesapeake Bay, select swaths and download data. I downloaded all available swaths for 2021 for this region. I find that occasionally some images are not in the Bay region but are centered around the Great Lakes! I am not entering any lat-lon boxes -- I just choose pre-defined region from the selection. Any explanation you can provide would be appreciated.