Minimize Level-0

Level-0 processing aims to generate Level-0 products, i.e. time sorted and annotated data from Instrument Source Packet (ISP). The Level-0 products are internal products not disseminated to SENTINEL-3 users.

The first part of the process involves unpacking the ISPs, performing a quality check and appending annotation data to them. Once the input raw data files are read, all necessary data are extracted and parsed. The ISPs are sorted and checked, including missing and duplicated packet numbering.

The final part of the processing is the Level-0 product generation. Several quality flags are computed and included in the associated metadata. Raw data, time sorted and annotated are included in the Level-0 package.