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:
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MMM is the mission ID:
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S3A = SENTINEL- 3A
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S3B = SENTINEL-3B
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S3_ = for both SENTINEL-3A and 3B.
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SY is the Data source/consumer (SY = Instrument Synergy)
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L is the processing level
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"1" for Level-1
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"2" for Level-2
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underscore "_" if processing level is not applicable.
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TTTTTT is the Data Type ID
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Level-1 Synergy data:
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"MISR___" = Level-1 products
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Level-2 Synergy data:
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"SYN___" = land surface reflectance and aerosol parameters
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"VGP___" = Vegetation P continuity product
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"VG1___" = Vegetation S1 continuity product
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"V10___" = Vegetation S10 continuity product
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"SYN_BW" = browse product derived from "SYN___"
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"VGP_BW" = browse product derived from "VGP___"
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"VG1_BW" = browse product derived from "VG1___"
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"V10_BW" = browse product derived from "V10___".
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yyyymmddThhmmss is the sensing start time
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YYYYMMDDTHHMMSS is the sensing stop time
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YYYYMMDDTHHMMSS is the product creation date
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[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 "_"
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GGG identifies the centre which generated the file
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[class ID] identifies the class ID for instrument data products with conventional sequence P_XX_NNN where:
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P indicates the platform (O for operational, F for reference, D for development, R for reprocessing)
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XX indicates the timeliness of the processing workflow (NR for NRT, ST for STC, NT for NTC)
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NNN indicates the baseline collection or data usage.
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.SEN3 is the filename extension.
Example of filename:
S3A_SY_2_VGP____20040704T104000_20040704T104630_20150706T082312_0390_028_180______LN2_D_NT_001.SEN3