Meetings

CEOS

SIT

• 2026 SIT Technical Workshop : September 8th - 10th, 2026 | Washington, D.C., USA
• SIT-42 : April 20th - 22nd, 2027 | Washington D.C., USA
• 2027 SIT Technical Workshop : September 7th - 9th, 2027 | Irvine, California, USA

Plenary

• 40th CEOS Plenary : November 3rd - 6th, 2026 | Hobart, Australia
• 41st CEOS Plenary : November 1st - 5th, 2027 | Bergen, Norway

Working Groups

• WGISS-62 : October 26th - 30th, 2026 | Boulder Colorado, USA
• WGCV-57 : February 16th - 19th, 2027

Virtual Constellations

• AC-VC-22 / ACSG Joint Meeting 2026 : June 1st - 4th, 2026 | Leiden, the Netherlands
• LSI-VC-20 & CEOS-ARD Development Sprint : September 14th - 16th, 2026 | Reston, VA, USA

External

• ExpandEO 2026 : June 10th - 11th, 2026 | Brussels, Belgium
• EO Summit 2026 : June 22nd, 2026 | London, UK
• Earth Observation for Climate Adaptation Workshop : June 23rd - 25th, 2026 | Chilton, Oxfordshire, UK
• COSPAR 2026 - 46th Scientific Assembly of the Committee on Space Research (COSPAR) : August 1st - 9th, 2026 | Florence, Italy
• UK Earth Observation Conference 2026 : September 15th - 17th, 2026 | Warwick, UK
• 77th International Astronautical Congress (IAC) : October 5th - 9th, 2026 | Antalya, Türkiye
• CNG Forum 2026 : October 6th - 9th, 2026 | Snowbird, Utah, United States

CEOS

SIT

• SIT-41 : April 14th - 16th, 2026 | Irvine, California, USA
• 2025 SIT Technical Workshop : September 9th - 11th, 2025 | Darmstadt, Germany
• SIT-40 : April 8th - 10th, 2025 | Fukuoka, Japan
• 2024 SIT Technical Workshop : September 17th - 19th, 2024 | Sydney, Australia
• SIT-39 : April 9th - 11th, 2024 | Tokyo area, Japan
• 2023 SIT Technical Workshop : October 17th - 19th, 2023 | October, 2023 | ESA/ESRIN
• SIT-38 : March, 2023 | ESA/ESRIN
• 2022 SIT Technical Workshop : September, 2022 | ESA/ESRIN
• SIT-37 : March, 2022 | Virtual
• 2021 SIT Technical Workshop : September 7th - 16th, 2021 | Virtual (hosted by Australia)

Plenary

• 39th CEOS Plenary : November 4th - 6th, 2025 | Bath, UK
• 38th CEOS Plenary : October 22nd - 24th, 2024 | Montreal, Canada
• 37th CEOS Plenary : November, 2023 | Chiang Rai, Thailand
• 36th CEOS Plenary : November - December, 2022 | Biarritz, France
• 35th CEOS Plenary : November, 2021 | Virtual
• 34th CEOS Plenary : Virtual | October 20-22, 2020
• 33rd CEOS Plenary : Ha Noi, Viet Nam | October, 2019
• 32nd CEOS Plenary : Brussels, Belgium | October, 2018
• 31st CEOS Plenary : Rapid City, South Dakota, USA | October, 2017
• 30th CEOS Plenary : Brisbane, Australia | October - November, 2016

Working Groups

• WGCV-56 : April 21st - 22nd, 2026
• WGCV-56 & LSI-VC-19 Joint Meeting : April 20th - 24th, 2026 | Sioux Falls, South Dakota, USA
• WGDisasters-25 & WGISS-61 Joint meeting : March 16th - 20th, 2026 | Dehradun, India
• WGClimate-24 & GHG Task Team : February 9th - 12th, 2026 | Harwell, UK
• WGCV SAR Subgroup Meeting : October 27th - 30th, 2025 | Vancouver, Canada
• WGClimate-23 : October 24th, 2025 | Virtual
• WGISS-60 : October 13th - 17th, 2025 | Oberpfaffenhofen, Germany
• WGDisasters-24 : September 30th - October 2nd, 2025 | Bariloche, RN - Argentina
• WGCV-55 : July 8th - 11th, 2025 | Hyderabad, India
• WGCapD-14 : June 30th - July 1st, 2025 | Hybrid

Virtual Constellations

• CEOS-ARD Oversight Group (April 2026) : April 24th, 2026 | Sioux Falls, SD, USA
• LSI-VC-19 : April 21st - 22nd, 2026
• LSI-VC-18 : September 3rd - 5th, 2025 | Ispra, Italy
• AC-VC-21 / ACSG Joint Meeting 2025 : June 9th - 13th, 2025 | Takamatsu, Japan
• GEOGLAM Essential Agricultural Variables (EAV) Stocktake Workshop : May 13th - 15th, 2025
• LSI-VC-17 : April 14th - 16th, 2025 | Tsukuba, Japan
• AC-VC-20 : October 15th - 18th, 2024 | College Park, MD, USA
• LSI-VC-16 : September 23rd - 25th, 2024 | Canberra, Australia
• LSI-VC-15 : April 3rd - 5th, 2024 | Tokyo, Japan
• International Methane Standards Workshop : 26 - 28 February | London, UK