# MSU-MR VIS/IR Imaging Radiometer
*sensor . products*

Visible/infrared imaging radiometer flown on Meteor-M N2-4 for cloud, land, ocean and radiation-budget variables.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: npo-vniiem
- **sensor**: {"instrument_family":"passive-optical","measurement_principle":"passive","spec_disclosure":"undisclosed"}
- **entity type**: sensor
- **last verified date**: 2026-06-16
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: npo-vniiem
- **attributes**: {"kind":"sensor","product_status":"operational","deployment_context":"orbital","manufacturer":"npo-vniiem","description":"Visible/infrared imaging radiometer flown on Meteor-M N2-4 for cloud, land, ocean and radiation-budget variables.","sensor":"{\"instrument_family\":\"passive-optical\",\"measurement_principle\":\"passive\",\"spec_disclosure\":\"undisclosed\"}"}

## Editorial
MSU-MR (Medium Resolution Multispectral Scanner) is a passive cross-track imaging radiometer carried on Meteor-M N2-4, covering six spectral bands from the visible through thermal infrared.[^wmo-oscar-msu-mr] The six bands span 0.50-0.70 um (VIS), 0.70-1.10 um (NIR), 1.60-1.80 um (SWIR), 3.50-4.10 um (MWIR), 10.5-11.5 um (TIR), and 11.5-12.5 um (TIR).[^wmo-oscar-msu-mr] All six bands share a uniform 1.0 km nadir ground sampling distance, with a swath of 2800 km providing global coverage twice per day in infrared channels and once per day in visible channels.[^wmo-oscar-msu-mr][^eoportal-meteor-m2]

The instrument measures reflected solar and emitted thermal radiance for derivation of cloud properties, sea-surface temperature, land-surface temperature, vegetation state, and thermal anomalies.[^wmo-oscar-msu-mr] Radiometric performance is characterised by a signal-to-noise ratio of 1000 at 80 percent albedo in the VIS, NIR, and SWIR channels, and noise-equivalent differential temperature of 0.5 K at 300 K in the MWIR channel and 0.15 K at 300 K in both TIR channels.[^wmo-oscar-msu-mr]

MSU-MR descends from the Klimat and MR-2000M1 instruments previously flown on Meteor-3M, combining and extending their measurement heritage into a single wide-swath imaging package.[^wmo-oscar-msu-mr]

## Compositional position
- meteor-m-n2-4 (missions) --[mission_payloads]--> MSU-MR VIS/IR Imaging Radiometer
- meteor-m-n2-3 (missions) --[mission_payloads]--> MSU-MR VIS/IR Imaging Radiometer

## Sources
- [wmo-oscar-msu-mr] | WMO OSCAR - Instrument Details: MSU-MR | https://space.oscar.wmo.int/instruments/view/msu_mr | tier=agency-doc | accessed=2026-06-16
- [eoportal-meteor-m2] | Meteor-M2 Meteorological Mission - eoPortal Directory | https://directory.eoportal.org/satellite-missions/meteor-m-2 | tier=community | accessed=2026-06-16
- [wmo-oscar-meteor-m-n2-4] | WMO OSCAR - Satellite: Meteor-M N2-4 | https://space.oscar.wmo.int/satellites/view/meteor_m_n2_4 | tier=agency-doc | accessed=2026-06-16

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Source: https://eo-atlas.org/products/sensor/msu-mr
Maintainer: SpectraWorks B.V. (CC-BY 4.0)