Timeline

We invite you to click on some of the timeline entries to refer you to our press releases.

  1. 1998
    1. Jan
      1. Proposal to the Canadian Space Agency (CSA)

    2. Nov
      1. ACE selected for SCISAT

  2. 2002
    1. Dec
      1. Late 2022: Construction and testing of instruments nearly complete

  3. 2003
    1. Feb
      1. Feb/March: Science characterization testing at the University of Toronto

    2. Aug
      1. Launch, early orbit phase begins

    3. Dec
      1. First atmospheric spectra recorded

  4. 2004
    1. Jan
      1. Main science commissioning

    2. Feb
      1. Routine operations begin

      2. Feb/March: 2004 Canadian Arctic Validation Campaign
    3. Sep
      1. FTS version 1.0 started processing (for selected occultations)

  5. 2005
    1. May
      1. FTS version 2.2 started processing (over entired data set)

    2. Jun
      1. June 6: 10,000th orbit; Geophysical Research Letters special issue published
  6. 2006
    1. Jun
      1. MAESTRO version 1.2 started processing

    2. Sep
      1. ACE Featured in UN/WMO Scientific Assessment of Ozone Depletion 2006 Report
    3. Oct
      1. Canada's SCISAT satellite explains 2006 ozone-layer depletion
  7. 2007
    1. Mar
      1. International Polar Year begins

    2. Sep
      1. Scientists in first global study of poison gas in the atmosphere
  8. 2008
    1. Jul
      1. Global distributions of carbonyl sulfide in the stratosphere
    2. Aug
      1. Keeping an eye on the ozone layer
  9. 2009
    1. Mar
      1. International Polar Year ends

    2. May
      1. SCISAT team wins the Alouette Award
    3. Jun
      1. FTS version 3.0 started processing (over entire data set)

    4. Oct
      1. Unusual meteorological conditions in early 2009 led to more ozone-destroying gases in the middle atmosphere
  10. 2010
    1. Mar
      1. Monsoon helps to raise pollution to new heights
    2. Sep
      1. ACE Featured in UN/WMO Scientific Assessment of Ozone Depletion 2010 Report
  11. 2011
    1. Sep
      1. Team measuring polluting emissions from forest fires in Canada
  12. 2012
    1. Nov
      1. 50,000th orbit (Nov. 24)

  13. 2014
    1. Sep
      1. ACE Featured in UN/WMO Scientific Assessment of Ozone Depletion 2014 Report
  14. 2018
    1. Aug
      1. ACE Celebrates 15 Years on Orbit
    2. Sep
      1. ACE Featured in UN/WMO Scientific Assessment of Ozone Depletion 2018 Report
  15. 2019
    1. May
      1. ACE-FTS v4.0 released

  16. 2022
    1. Mar
      1. 100,000th orbit

      2. Wildfire smoke destroys stratospheric ozone
    2. Sep
      1. ACE Featured in UN/WMO Scientific Assessment of Ozone Depletion 2022 Report
  17. 2023
    1. Jan
      1. ACE-FTS v5.0 released

    2. Aug
      1. SCISAT reaches 20 years in orbit
  18. 2024
    1. Apr
      1. CSA uses ACE data in UN Ozone Report submission
    2. Dec
      1. ACE provides first HFC-125 Measurements by Satellite
  19. 2025
    1. Sep
      1. ACE featured in Scientific Assessment Panel of the Montreal Protocol review on Emissions of HFC-23
      2. Celebrating ACE's Contributions to Atmospheric Monitoring on World Ozone Day
  20. 2026
    1. Feb
      1. Satellite observations put stratospheric methane loss higher than models predicted