CHRIS

Instrument

blue arrow Instrument Overview

Proba-1 CHRIS

PROBA-1's main instrument is the Compact High Resolution Imaging Spectrometer (CHRIS), which has applications in atmosphere, land, agriculture and oceans and coast.

It acquires 13 square km scenes at 17 m spatial resolution in 18 user-selected visible and near-infrared wavelengths.

CHRIS was funded by the UK Space Agency (at the time the British National Space Centre (BNSC)) and Sira Electro-Optics Ltd, and developed/built by Sira Technology Ltd (formerly Sira Electro-Optics Ltd).

 

Main Parameters

Resolution 18m at nadir
Swath Width 14km
Spectral Range 400 - 1050 nm in VNIR
Spectral Resolution 1.25 nm 11 nm 
Image Size Each nominal image is 13 km x 13 km

 

Available MODES:

  • MODE 1: Full swath width, 62 spectral bands, 773nm / 1036nm, nadir ground sampling distance 34m at 556km 
  • MODE 2 WATER BANDS: Full swath width, 18 spectral bands, nadir ground sampling distance 17m at 556km 
  • MODE 3 LAND CHANNELS: Full swath width, 18 spectral bands, nadir ground sampling distance 17m at 556km 
  • MODE 4 CHLOROPHYL BAND SET: Full swath width, 18 spectral bands, nadir ground sampling distance 17m at 556km 
  • MODE 5 LAND CHANNELS: Half swath width, 37 spectral bands, nadir ground sampling distance 17m at 556km

blue arrow Data

blue arrow DATA DOWNLOAD

Download CHRIS data from Proba-1 mission through the ESA TPM Online Dissemination system. The data is freely available to registered EO-SSO users.

blue arrow DATA DESCRIPTION

ESA offers to registered user the access through the Online Dissemination server to the following data collection:

Details about how to request new CHRIS sites for new acquisitions are provided on Proba-1 information area at https://earth.esa.int/aos/proba

blue arrow DATA TOOLS

A number of tools are available for visualising, processing and analysing PROBA-1 data.

Sentinel Application Platform

Sentinel Application Platform (SNAP) is a common architecture for all Sentinel Toolboxes. It is ideal for Earth Observation processing and analysis due to technological innovations.


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HDFclean

HDFclean V2 is a program for reprocessing images stored in the HDF file format (Hierarchical Data Format).

 


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Chris Toolbox

A Chris Toolbox development project is currently underway dedicated to the development of software modules for the BEAM toolbox enabling the exploitation of the high-resolution, multi-angular and hyper-spectral capabilities of the CHRIS instrument onboard the PROBA platform. A data reader for Chris data is already included in the BEAM v 4.0.


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