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:
-
a manifest file containing a metadata section and a data object section
-
measurement data files
-
annotation data files (except for SL_2_WST_)
-
representation data files (XML files describing the binary information)(Level-0 only).
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.
SL_0_SLT
|
Full resolution ISPs
|
Internal
|
NRT
|
7.2 GB
|
N/A |
SL_1_RBT
|
Brightness temperatures and radiances
|
User
|
NRT/NTC
|
44.5 GB
|
Frame 3 mn
for both NRT and NTC |
SL_2_WCT
|
Sea surface temperature
(single and dual view, 2 and 3 channels)
|
Internal
|
NRT/NTC
|
4.1 GB
|
N/A |
SL_2_WST
|
Level-2P sea surface temperature (GHRSST-like)
|
User
|
NRT/NTC
|
2.2 GB
|
NRT = Frame 3 mn
NTC = Full orbit (from pole to pole) |
SL_2_LST__
|
Land surface temperature parameters |
User
|
NRT/NTC
|
5 GB
|
NRT = Frame 3 mn
NTC = Full orbit (from pole to pole) |
SL_2_FRP
|
Fire radiative power |
User
|
NRT/NTC
|
4.4 GB (TBC)
|
NRT = Frame 3 mn (TBC)
NTC = Full orbit (pole to pole) (TBC) |
SL_2_AOD
|
Aerosol Optical Depth |
User
|
NRT
|
0.079 GB (TBC)
|
NRT + Frame 3 min (TBC)
Note: an AOD NTC product will be generated by the Level-2 synergy processor, exploiting the synergy between OLCI and SLSTR. Details on Level-2 SYN page |
Table 1: 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.