News - Success Stories

New cross-calibration readies PROBA-1 data for climate research

While PROBA-1 has already exceeded expectations by suppling over 21 years of Earth observation hyperspectral data, recent cross-calibration activities are aiming to ensure the data will robustly serve long time-series research, even when the satellite ends operation.

News - Operational News

PROBA-1 - End of CHRIS acquisitions

The CHRIS instrument onboard PROBA-1 successfully ended its operational phase in December 2022 and will no longer acquire images.

Document - Data Access Information

ESA-archive-third-party-mission-collections.pdf

Discover the ESA archive data collections offered for the Third Party Missions programme.

Tools - Catalogues

FedEO

FedEO is a data catalogue that provides a unique entry point to a number of scientific catalogues and services for, but not limited to, European and Canadian missions.

Tools - Catalogues

EO CAT

EO CAT is a data catalogue, offering a Next Generation Earth Observation system designed to manage end-user Earth Observation services.

News - General News

A summary of ESA Third Party Mission collections

A new summary is available, showcasing the ESA archives for Third Party Mission collections.

News - Thematic area articles

Space helps monitor Earth’s changing biosphere

Earth’s biosphere is continually changing. Through its pioneering Earth observation missions, ESA is making critical contributions to monitor these changes and their impacts on Earth’s water and carbon cycles.

News - Infographics

PROBA-1 - From technology demonstration to long-term Earth observation

Learn about ESA's PROBA-1 (Project for On-Board Autonomy) mission in our new infographic.

News - Success Stories

A long way for a little satellite

The PROBA-1 satellite, a technology demonstrator later turned into an Earth observation mission – and just a cubic metre in volume – is reaching 20 years of continuity, making it a huge success.

News - General News

Release of CHRIS PROBA-1 toolbox for SNAP

PROBA -1 continues to provide valuable hyperspectral data to the scientific community, and so the tools to handle this data have been incorporated into ESA’s SNAP multi-mission toolbox.

Data - Data Description

Proba-1 CHRIS Level 1A

CHRIS acquired a set of up to five images of each target during each acquisition sequence, these images were acquired when Proba-1 was pointing at distinct angles with respect to the target. CHRIS Level 1A products (supplied in HDF data files, version 4.1r3) include five formal CHRIS imaging modes, classified as modes 1 to 5: Mode Name Swath Spectral Bands Nadir ground sampling distance MODE 1   Full swath width 62 (773nm / 1036nm) 34m @ 556km MODE 2 WATER BANDS Full swath width 18 17m @ 556km MODE 3 LAND CHANNELS Full swath width 18 17m @ 556km MODE 4 CHLOROPHYL BAND SET Full swath width 18 17m @ 556km MODE 5 LAND CHANNELS Half swath width 37 17m @ 556km   Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

Mission - Third Party Missions

PROBA-1

PROBA-1 is a technology demonstration satellite that later became an operational Earth observation mission.

Campaign

SPARC

ESA's SPectra bARrax Campaign (SPARC) activity was part of the preparatory study for a proposed ESA Earth Explorer mission called SPECTRA. The objective was to collect a CHRIS/PROBA reference dataset for SPECTRA-related studies.

Document - General Reference

The PROBA Satellite Star Tracker Performance

Document - General Reference

The Compact High Resolution Imaging Spectrometer (CHRIS)- The Future of Hyperspectral Satellite ---

Document - General Reference

The PROBA-CHRIS Mission- A Low-Cost Smallsat for Hyperspectral, Multi-Angle, Observation of the ---

Document - Product Readme Note

Comparing Three Canopy Reflectance Models with Hyperspectral Multi-Angular Satellite Data

Document - Product Readme Note

Mapping of chlorophyll and suspended particulate matter maps from CHRIS imagery of the Oostende ---

Document - Product Document

Assessment of Canopy Structure and Heterogeneity from Multi-Angular CHRIS-PROBA Data

Document - Technical Note

Note on CHRIS Acquisition Procedure and Image Geometry

The aim of this document is to clarify the acquisition procedure CHRIS on-board the PROBA satellite. It provides a detailed description of the acquisition procedure and summarises the implications for the geometrical properties of the CHRIS images.