EO·Atlas
IKFS-2 Infrared Fourier Spectrometer
Compiled from public sources on 2026-06-16. Not independently verified by NPO VNIIEM Corporation.
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Infrared Fourier spectrometer flown on Meteor-M N2-4 for atmospheric temperature, humidity, ozone and trace-gas sounding context.
IKFS-2 is a nadir-viewing infrared Fourier-transform spectrometer carried on the Meteor-M meteorological satellite series, measuring emitted thermal radiation across the 5.0 to 15.0 micrometer range (665-2000 cm-1) in 2670 spectral channels.[1][2] Its cross-track scanning geometry produces 30 steps per scan line across a contiguous swath of 1000 km, with coverage extending to approximately 2500 km when gaps between scan positions are included.[1] Spatial resolution at nadir is 35 km.[1]
Spectral resolution is 0.5 cm-1 unapodised.[1] Radiometric sensitivity is characterised by a noise-equivalent differential temperature of 0.5 K at 280 K.[1]
The fine spectral resolution of the instrument enables vertical profiling of atmospheric temperature, humidity, ozone, and trace gases from nadir-viewing geometry. IKFS-2 first flew on Meteor-M N2 in July 2014, with planned utilisation through 2040.[1] The instrument has been described in the peer-reviewed literature based on operational data from the Meteor-M N2 mission.[3]
Compositional position
- Atmospheric limb soundingvia Meteor-M N2-4
IKFS-2 is an infrared Fourier spectrometer supporting atmospheric sounding variables on Meteor-M N2-4.
None on record.
- [1]WMO OSCAR - Instrument Details: IKFS-2agency doc2026-06-16
- [2]Meteor-M2 Meteorological Mission - eoPortal Directorycommunity2026-06-16
- [3]The IKFS-2 Infrared Fourier-Transform Spectrometer Operating Onboard the Meteor-M No.2 Satellite, Izvestiya Atmospheric and Oceanic Physics, 2018peer reviewed2026-06-16
- [4]WMO OSCAR - Satellite: Meteor-M N2-4agency doc2026-06-16