The quality control of the ALOS PRISM / AVNIR-2 data at ESA

Sebastien Saunier(1), Philippe Goryl(2), Bernard Collet(1) and Gordon Mack(3)

(1) Earth Observation Quality Control, GAEL Consultant, Champs sur Marne, France
(2) European Space Agency ESA-ESRIN, Data Quality and Algorithms Office, 00044 Frascati, Italy
(3) VEGA, UK, , United Kingdom


The Advanced Land Observing Satellite (ALOS) was launched on Jan 24th, 2006 by a Japan Aerospace Exploration Agency (JAXA) H-IIA launcher. It carries three remote sensing instruments: Advanced Visible and Near Infrared Radiometer type-2 (AVNIR-2), Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) and Phased Array Type L-band Synthetic Aperture Radar (PALSAR). Within the framework of ALOS Data European Node (ADEN), European Space Research INstitute (ESRIN) as part of European Space Agency (ESA), set up a quality control system in order to monitor the data product quality. This paper summarizes the strategy that ESA adopted to define and implement a quality control system well suited to a third party mission such the ALOS one. The efforts of expert teams (GAEL, ETH) strongly support by the operational team (VEGA) lead to an up to date status on product specifications reported to ESA on a cyclic basis and discussed with JAXA. Results in the fields of the radiometry, geometry and image quality are discussed.

Keywords-component; Quality control, calibration, data verification, radiometry, geometry, image quality


Symposium presentation


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