The SLSTR data format follows the format defined for each Sentinel-3 product, i.e. the PDGS product specification, and is based on SENTINEL-SAFE. Each product package includes:
User product, generated for operational dissemination to Sentinel-3 users, has to be distinguished from the internal product, which is only used internally for normal processing.
Following the three main processes, there are three main data packages: Level-0, Level-1 and Level-2.
The Sentinel-3 user products are disseminated in Product Dissemination Units (PDU), in order to ease the online dissemination and data handling for the users.
The PDU is a portion of data and is defined per product type. These PDUs are often referred to as product granules.
Description and content of the different SLSTR product packages, the estimated size corresponds to a full orbit without consideration about compression, NRT/NTC less than 3/48 hours after measurement by satellite.