Sensor · Spaceborne

IKFS-2 Infrared Fourier Spectrometer

Missions → Meteor-M N2-4 (Operational) , Meteor-M N2-3 (Degraded)

Infrared Fourier spectrometer flown on Meteor-M N2-4 for atmospheric temperature, humidity, ozone and trace-gas sounding context.

Sensor

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]

Operator pricing

Pricing not publicly listed by operator

Supply chain position

carried by Meteor-M N2-4

carried by Meteor-M N2-3

Methods this sensor implements

Demonstrated

Hyperspectral infrared nadir sounding
oscar-ikfs-2: 2670-channel cross-track IR interferometer; ikfs2-temperature-validation: profiles validated against radiosondes.

Capable, undemonstrated

None on record.

Topics this relates to

Sources

[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

Cite https://eo-atlas.org/products/sensor/ikfs-2 Markdown twin → Field definitions → Suggest a correction →

How to cite this page

Plain text

IKFS-2 Infrared Fourier Spectrometer. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/sensor/ikfs-2 (CC BY 4.0)

BibTeX

@misc{eoatlas:products:sensor:ikfs-2,
  title = {IKFS-2 Infrared Fourier Spectrometer},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/products/sensor/ikfs-2}
}