The file naming convention of SYN products (see this document for more details is identified by the sequence of fields described below:

MMM_SY_L_TTTTTT_yyyymmddThhmmss_YYYYMMDDTHHMMSS_[instance ID]_GGG_[class ID].[extension]

where:

• MMM is the mission ID:
  • S3A = SENTINEL- 3A
  • S3B = SENTINEL-3B
  • S3_ = for both SENTINEL-3A and 3B.
• SY is the Data source/consumer (SY = Instrument Synergy)
• L is the processing level
  • "1" for Level-1
  • "2" for Level-2
  • underscore "_" if processing level is not applicable.
• TTTTTT is the Data Type ID
  • Level-1 Synergy data:
    • "MISR___" = Level-1 products
  • Level-2 Synergy data:
    • "SYN___" = land surface reflectance and aerosol parameters
    • "VGP___" = Vegetation P continuity product
    • "VG1___" = Vegetation S1 continuity product
    • "V10___" = Vegetation S10 continuity product
    • "AOD___"= Global Aerosol product
    • "SYN_BW" = browse product derived from "SYN___"
    • "VGP_BW" = browse product derived from "VGP___"
    • "VG1_BW" = browse product derived from "VG1___"
    • "V10_BW" = browse product derived from "V10___".
• yyyymmddThhmmss is the sensing start time
• YYYYMMDDTHHMMSS is the sensing stop time
• YYYYMMDDTHHMMSS is the product creation date
• [instance ID] The field consists of 17 characters, either uppercase letters or digits or underscores "_".

The instance id fields include the following cases, applicable as indicated:

1. Instance ID for the instrument data products disseminated in "stripes":

Duration,"_", cycle number, "_", relative orbit number,"_", 4 underscores "_"
DDDD_CCC_LLL_____
2. Instance ID for the instrument data products  
disseminated in "frames":
Duration, "_", cycle number, "_", relative orbit number, "_", frame along track coordinate
DDDD_CCC_LLL_FFFF
3. Instance ID for the instrument data products disseminated in "tiles".
Two sub-cases are applicable:
a) tile covering the whole globe:
      "GLOBAL___________"
b) tile cut according to specific
geographical criteria:
Tile Identifier
ttttttttttttttttt
4. Instance ID for auxiliary data:
            17 underscores "_"

• GGG identifies the centre which generated the file
• [class ID] identifies the class ID for instrument data products with conventional sequence P_XX_NNN where:
  • P indicates the platform (O for operational, F for reference, D for development, R for reprocessing)
  • XX indicates the timeliness of the processing workflow (NR for NRT, ST for STC, NT for NTC)
  • NNN indicates the baseline collection or data usage.
• .SEN3 is the filename extension.

Example of filename:

S3A_SY_2_VGP____20040704T104000_20040704T104630_20150706T082312_0390_028_180______LN2_D_NT_001.SEN3