Measurements and Applications
Wide-angle Fabry-Perot imaging spectrometer. Measures methane (CH4).
Full Name
Wide-Angle Fabry-Perot Imaging Spectrometer (CH4)
Status
Operational
Instrument Agencies
GHGSat
Maturity
Medium Heritage
Instrument Type
Atmospheric chemistry 
Geometry
Nadir-viewing
Instrument Technology
High-resolution nadir-scanning SW spectrometer
Sampling
Imaging
Data Access
Constrained Access
Data Format
Constellation
GHGSat — 18 units · equips the constellation from Sep 2020
primary payload
Resolution
~30m
[Best Resolution: 30m]
Swath
Field of View: 12 km x 15 km; Sensor Pointing: +/-15 degrees from nadir along and cross-track.
[Max Swath: 15 km]
Accuracy
Methane density precision: 1-3% of background Detection threshold: 100 kg/hr (in 3 m/s wind) Depth of imaging: 12 bits
Waveband
SWIR 1630-1675 nm, multiple bands in a proprietary configuration, unpolarized