Hi,
When processing Landsat data, I realised that c2rcc_flags bits 2 and 3 (= values 2 (Rtosa_OOR) and 4 (Rhow_OOR)) are always set to 1 (even on pixels outside the satellite swath). Is it sth expected / on purpose (it would be weird, though + it’s not the case for Sentinel-2/3)? 
PS: I processed multiple satellite products with different SNAP versions.