EO·Atlas
Total Anthropogenic and Natural emissions mapping SpectrOmeter-3 (TANSO-3)
Compiled from public sources on 2026-06-16. Not independently verified by Mitsubishi Electric Corporation.
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Grating imaging spectrometer carried by GOSAT-GW for CO2, CH4 and NO2 observations in wide and focus modes.
Total Anthropogenic and Natural emissions mapping SpectrOmeter-3 (TANSO-3) is the passive optical grating imaging spectrometer carried by GOSAT-GW for greenhouse-gas and air-pollutant observation. [1] [2] It observes three spectral bands around 0.45 um, 0.76 um and 1.61 um, supporting CO2, CH4 and NO2 retrievals. [2] Standard Level 2 products are planned for XCO2, XCH4, SIF and NO2, with standard Level 1 and Level 2 products planned for free availability. [3] Wide Mode provides 10 km footprints across a 911 km swath and is designed to produce globally covered maps within 3 days. [2] Focus Mode trades coverage for targeted high-spatial-resolution snapshots, with 1-3 km footprints over an approximately 90 km target area. [2] TANSO-3 has demonstrated short-wave-infrared absorption screening and tropospheric NO2 column retrieval on GOSAT-GW, linking greenhouse-gas mapping with air-pollution observation in the same instrument. [2]
Compositional position
- SWIR absorption - global screeningvia GOSAT-GW (IBUKI GW)
TANSO-3 measures reflected sunlight in visible, O2 A-band and SWIR bands for CO2 and CH4 column retrieval on GOSAT-GW.
- Tropospheric column mapping (NO2/SO2)via GOSAT-GW (IBUKI GW)
TANSO-3 uses its 0.45 micrometre band for NO2 retrieval alongside O2 and CO2/CH4 bands.
None on record.
- [1]The greenhouse gas observation mission with GOSAT-GWpeer reviewed2026-06-16
- [2]GOSAT-GW Project: greenhouse gas observation and data products, NIESagency doc2026-06-16
- [3]IBUKI GW (GOSAT-GW), JAXA Satellite Navigatoragency doc2026-06-16