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Copernicus Sentinel-3A Data User News

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Following the renewal of the ESA S3 Processing Services, the former Land Processing Centre codes "LN1", "LN2" and "LN3" will no longer be used. Instead two new Centre Codes "PS1" and "PS2" will be used to identify the new Processing Services. Nominally "PS1" corresponds to the service performing the systematic processing of "S3-A" data and "PS2" to the service performing the systematic processing of "S3-B" data.

For example:

  • S3A_SL_2_LST____20220323T235901_20220324T000201_20220324T004828_0179_083_216_0540_PS1_O_NR_004.SEN3.zip
  • S3B_OL_1_EFR____20220321T005607_20220321T005907_20220321T091528_0179_064_031_1620_PS2_O_NT_002.SEN3.zip
  • S3B_SR_1_SRA___20220321T001700_20220321T002700_20220321T013919_0599_064_030_____PS2_O_NR_004.SEN3.zip

instead of:

  • S3A_SL_2_LST____20220323T235901_20220324T000201_20220324T023054_0179_083_216_0540_LN2_O_NR_004.SEN3.zip
  • S3B_OL_1_EFR____20220321T005607_20220321T005907_20220322T045220_0179_064_031_1620_LN1_O_NT_002.SEN3.zip
  • S3B_SR_1_SRA___20220321T001700_20220321T002700_20220321T011723_0599_064_030_____LN3_O_NR_004.SEN3.zip

Furthermore, the following information will be updated accordingly:

  • processing centre information present in the product manifest

  • Sentinel-3 file naming convention as:


Product Generating Centre
Consists of 3 characters, either uppercase letters or digits
Generating Centres for the Instrument data products:

LN1 = Land OLCI Processing and Archiving Centre, closed in 2022
LN2 = Land SLSTR and SYN Processing and Archiving Centre, closed in 2022
LN3 = Land Surface Topography Mission Processing and Archiving Centre, closed in 2022
PS1 = Land Processing Service 1 (nominal service for S3A)
PS2 = Land Processing Service 2 (nominal service for S3B)
MAR = Marine Processing and Archiving Centre
SVL = Svalbard Satellite Core Ground Station, closed in 2018
LRn = Land Re-processing Centre number n
MRn = Marine Re-processing Centre number n

Generating Centres for the Auxiliary data file:
The list is not exhaustive

ECW = ECMWF

EUM = EUMETSAT
SVL = Svalbard Satellite Core Ground Station
MPC = ESA’s Mission Performance Coordinating Centre

POD = Offline POD Service
CNE = CNES SALP service
MSL = Mullard Space Science Laboratory

If not applicable:
3 underscores “_”

The switch to the new processing services will take place on 5th April 2022.

Following the renewal of the ESA S3 Processing Services, the former Land Processing Centre codes "LN1", "LN2" and "LN3" will no longer be used. Instead two new Centre Codes "PS1" and "PS2" will be used to identify the new Processing Services. Nominally "PS1" corresponds to the service performing the systematic processing of "S3-A" data and "PS2" to the service performing the systematic processing of "S3-B" data.

For example:

  • S3A_SL_2_LST____20220323T235901_20220324T000201_20220324T004828_0179_083_216_0540_PS1_O_NR_004.SEN3.zip
  • S3B_OL_1_EFR____20220321T005607_20220321T005907_20220321T091528_0179_064_031_1620_PS2_O_NT_002.SEN3.zip
  • S3B_SR_1_SRA___20220321T001700_20220321T002700_20220321T013919_0599_064_030_____PS2_O_NR_004.SEN3.zip

instead of:

  • S3A_SL_2_LST____20220323T235901_20220324T000201_20220324T023054_0179_083_216_0540_LN2_O_NR_004.SEN3.zip
  • S3B_OL_1_EFR____20220321T005607_20220321T005907_20220322T045220_0179_064_031_1620_LN1_O_NT_002.SEN3.zip
  • S3B_SR_1_SRA___20220321T001700_20220321T002700_20220321T011723_0599_064_030_____LN3_O_NR_004.SEN3.zip

Furthermore, the following information will be updated accordingly:

  • processing centre information present in the product manifest

  • Sentinel-3 file naming convention as:


Product Generating Centre
Consists of 3 characters, either uppercase letters or digits
Generating Centres for the Instrument data products:

LN1 = Land OLCI Processing and Archiving Centre, closed in 2022
LN2 = Land SLSTR and SYN Processing and Archiving Centre, closed in 2022
LN3 = Land Surface Topography Mission Processing and Archiving Centre, closed in 2022
PS1 = Land Processing Service 1 (nominal service for S3A)
PS2 = Land Processing Service 2 (nominal service for S3B)
MAR = Marine Processing and Archiving Centre
SVL = Svalbard Satellite Core Ground Station, closed in 2018
LRn = Land Re-processing Centre number n
MRn = Marine Re-processing Centre number n

Generating Centres for the Auxiliary data file:
The list is not exhaustive

ECW = ECMWF

EUM = EUMETSAT
SVL = Svalbard Satellite Core Ground Station
MPC = ESA’s Mission Performance Coordinating Centre

POD = Offline POD Service
CNE = CNES SALP service
MSL = Mullard Space Science Laboratory

If not applicable:
3 underscores “_”

The switch to the new processing services will take place on 5th April 2022.