In nominal conditions, the SENTINEL-3 SYN Level-1 product (SY_1_MISR) contains 30 files, including manifest file. Each file is corresponding to an OLCI or SLSTR channel taken into account in the SYN processing.
The SYN Level-2 User products are produced at OLCI full resolution, taken into account only the daylight part of the orbit and pixels over land.
26 radiometric channels are considered : the 16 first one are related to the used OLCI channels (i.e all OLCI channels except Oa13, Oa14, Oa15, Oa19 and Oa20). Then, SLSTR used channels (S1, S2, S3, S5 and S6) are divided into two groups: radiometric measurements associated with nadir view and the ones associated with oblique view.
These channels are listed in the first column of the table below.
|SYN CHANNEL||CENTRAL WAVELENGTH (nm)||WIDTH (nm)||INSTRUMENT CHANNEL|
|SYN17||555||20||S1 (nadir view)|
|SYN18||659||20||S2 (nadir view)|
|SYN19||865||20||S3 (nadir view)|
|SYN20||1610||60||S5 (nadir view)|
|SYN22||555||20||S1 (oblique view)|
|SYN23||659||20||S2 (oblique view)|
|SYN24||865||20||S3 (oblique view)|
|SYN25||1610||60||S5 (oblique view)|
|SYN26||2250||50||S6 (oblique view)|
The VGT-P (SY_2_VGP___) and VGT-S products (SY_2_VG1___ and Y_2_V10___ ) include TOA and surface reflectances defined for VGT channels:
|VGT channel||Central Wavelength (nm)||Bandwidth (nm)||Combined OLCI/SLSTR bands – based on VGT-1 SRFs|
|B0||450||20||OLCI bands between 420 and 500 nm|
|B2||645||35||OLCI and SLSTR bands between 600 and 770 nm|
|B3||835||55||OLCI and SLSTR bands between 600 and 770 nm|
|MIR||1665||85||SLSTR bands between 1500 and 1750 nm|
The SYN AOD product has also its own radiometric resolution based on a combination of OLCI and SLSTR ones. Aerosol characteristics are provided for 6 different channels
|SYN AOD CHANNEL||CENTRAL WAVELENGTH (nm)||INSTRUMENT CHANNEL|