EO·Atlas
GHGSat constellation
Compiled from public sources. Not independently verified by GHGSat Inc..
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The GHGSat constellation is a commercial fleet of small satellites operated by GHGSat Inc. for facility-scale greenhouse gas monitoring, with the first satellite (GHGSat-D, also called Claire) launched on 2016-06-22 into a sun-synchronous orbit at approximately 500 km altitude.[1][2] The constellation uses wide-angle Fabry-Perot spectrometers and SWIR absorption to measure methane and CO2 column concentrations at sub-facility spatial resolution (12 km swath, better than 50 m ground sampling on later satellites), enabling quantification of emissions from individual industrial sites including oil and gas facilities, coal mines, and landfills.[2][3] Data products support matched-filter plume detection and flux estimation from identified emission sources.[2] The constellation has grown through successive launches; by late 2025 the fleet included at least 15 satellites, with Teodor (C-14) and Laila (C-15) launched later that year.[4][1] Tasking is commercially available. The exact operational count at any given date changes with the company's ongoing launch programme; per-satellite commissioning dates after launch are not detailed in public records.
All fields
| current status | Operational |
| operator | GHGSat Inc. |
| launch vehicle | Arianespace Vega |
| Launched | 2016-06-22 |
| orbit type | Sun-synchronous orbit, approximately 500 km, 97.5 deg inclination |
| swath km | 12 |
| revisit days | 1 |
| tasking supported | Yes |
| archive depth years | 10 |
| current geographic priority | Global facility-scale industrial greenhouse-gas sources |
| claim status | Unclaimed |
Supply chain position
- [1]WMO OSCAR satellite record: GHGSatcommunity2026-06-14
- [2]The GHGSat-D imaging spectrometer, Atmospheric Measurement Techniquespeer reviewed2026-06-14
- [3]GHGSat media kit November 2023operator marketing2026-06-14
- [4]GHGSat successfully launches Teodor C-14 and Laila C-15operator press2026-06-14
How to cite this page
Plain text
GHGSat constellation. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/missions/ghgsat (CC BY 4.0)
BibTeX
@misc{eoatlas:missions:ghgsat,
title = {GHGSat constellation},
author = {{EO-Atlas}},
publisher = {SpectraWorks B.V.},
note = {CC BY 4.0},
url = {https://eo-atlas.org/missions/ghgsat}
}