Minimize Data Formats

The OLCI data format follows the format defined for each Sentinel-3 product in 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, if defined
  • for Level-0 only, representation data files (XML files describing the binary information).

User products, generated for operational dissemination to the Sentinel-3 users, must be distinguished from internal products, used only internally for normal processing.

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.

 

Level Name of
Product Package

 

Main Content

Availability

Latency

Estimated

Size per half orbit

Product Dissemination Unit

0

OL_0_EFR

Full Resolution ISPs

INTERNAL

NRT

9.5Gb

N/A

0

OL_0_CR0

Calibration with no spectral relaxation

INTERNAL

NRT

502Mb

N/A

0

OL_0_CR1

Calibration with spectral relaxation

INTERNAL

NRT

240Mb

N/A

1

OL_1_EFR

Full resolution top of atmosphere reflectance

USER

NRT/NTC

28.5Gb

Frame 3 mn

1

OL_1_ERR

Reduced resolution top of atmosphere reflectance

USER

NRT/NTC

2.3Gb

Dump (full daylight orbit)

1

OL_1_RAC

Dark offset and gain coefficients from radiometric calibration

INTERNAL

NRT

1Mb

N/A

1

OL_1_SPC

Wavelength characterization from spectral calibration

INTERNAL

NRT

27Mb

N/A

2

OL_2_WFR

Full resolution water and atmosphere geophysical products

USER

NRT/NTC

28.4GB

Frame 3 mn

2

OL_2_LFR

Full resolution land and atmosphere geophysical products

USER

NRT/NTC

8.8GB

Frame 3 mn

2

OL_2_WRR

Reduced resolution water and atmosphere geophysical products

USER

NRT/NTC

2.4GB

Dump (full daylight orbit)

2

OL_2_LRR

Reduced resolution land and atmosphere geophysical products

USER

NRT/NTC

1.1GB

Dump (full daylight orbit)

Table 1: Description and content of the OLCI product package, the estimated size corresponds to a half orbit without consideration about compression, NRT/NTC less than 3/48 hours after measurement by satellite.

EFR = Earth Observation Full Resolution
ERR = Earth Observation Reduced Resolution
RAC = Radiometric Calibration
SPC = Spectral Calibration
WFR = Water Full resolution
LFR = Land Full resolution
WRR = Water Reduced Resolution
LRR = Land Reduced Resolution