Proba CHRIS Level 1A

Data

21 Feb 2020

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blue arrow DESCRIPTION

CHRIS stands for Compact High Resolution Imaging Spectrometer. It was launched aboard ESA's Proba-1 satellite on 22 October 2001 and provides hyperspectral images to a resolution of 18m. The Proba-1 mission objectives are primarily for in-orbit demonstration and evaluation of new technologies, the CHRIS instrument is one of these technologies, the data provided from CHRIS is targeted to help with environmental monitoring applications.

CHRIS data is supplied in HDF data files (version 4.1r3).

CHRIS acquires a set of up to five images of each target during each acquisition sequence, these images are acquired when Proba is pointing at distinct angles with respect to the target.

CHRIS Level 1A products include five formal CHRIS imaging modes, classified as modes 1 to 5:

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

blue arrow DETAILS

blue arrow DATA SET SPECIFICATIONS

Spatial coverage: 

75 N, -56 S, -180 W, 180 E

Temporal coverage:

2001-10-01 - present

Date of launch:
2001-10-22
Operators:
ESA/REDU
Mission status:
onGoing
Orbit height:
615 km
Orbit type:
Sun-synchronous
Swath width:
14 km
Resolution:

High Resolution - HR (5 - 20 m)

Medium Resolution - MR (20 - 500 m)

Wavelengths: VIS (0.40 - 0.75 µm), NIR (0.75 - 1.30 µm)

Product types: CHR_MO1_1P, CHR_MO2_1P, CHR_MO3_1P, CHR_MO4_1P, CHR_MO5_1P

blue arrow PROCESSING LEVEL

level 1a,

blue arrow APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions

READ T&C

blue arrow RESOURCES

CHRIS Data Format
Product Specifications
Latest quicklooks
Catalogue
Note on CHRIS Acquisition Procedure and Image Geometry
Technical Note
More CHRIS Documents
Product Specification
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