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SciSat-1/ACE is an atmospheric science mission of Canada. Through a 3rd party mission agreement ESA will make validated data from the ACE-FTS (ACE-Fourier Transform Spectrometer) available. The FTS measures the vertical distribution of trace gases, in particular of the regional polar O3 budget, as well as pressure and temperature (derived from CO2 lines).

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Distribution of new SciSat-1 products

28 November 2017

SciSat-1 data access is now performed through the Waterloo University server in their latest processing version.

Canada's SCISAT Satellite makes important discovery for understanding the evolution of the ozone layer

06 November 2014

Thanks to Canada's SCISAT, an international team of scientists has discovered a recent and unexpected increase in stratospheric hydrogen chloride (HCl) in the Northern Hemisphere.

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Facts and figures
Operators CSA (Canadian Space Agency)
Date of Launch 13 August 2003
Status Operating nominally in 2017
Orbit Height 650 km
Orbit Type Circular high-inclination
Repeat Cycle Annual
Resolution 4-150 km (ACE-FTS); 1-2 km (MAESTRO)
Swath Width FOV 1.25 mrad
Onboard Sensors provided under TPM
  • ACE-FTS (Atmospheric Chemistry Experiment-Fourier Transform Spectrometer)
  • MAESTRO (Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation)