Videos (SeaDAS Tutorial Series: Binning l2bin l2bindump) - seadas/seadas-toolbox GitHub Wiki
The l2bin options for sday/eday are only useful when binning global data and are unnecessary for a regional binning (even if that regional binning includes 8 days worth of source L2 data). Also, the prodtype option should be set to 'regional' if you are not trying to bin data covering the entire globe.
ocssw/share/common/product.xml l2bin uses to find valid min (and valid max?)