BackForwardInstrument:  AIUS 

Instrument details
Acronym AIUS
Full name Atmospheric Infrared Ultra-spectral spectrometer
Purpose Atmospheric chemistry. Primary addressed species: O3, H2O, NO, N2O, NO2, CO, CO2
Short description SWIR/MWIR/TIR spectrometer. Spectral range: 2.4-13.3 μm (750-4100 cm-1). Spectral resolution 0.03 cm-1. SNR > 100 @ 5800 K
Background New development
Scanning Technique Limb sounding by sun occultation. Horizontal coverage +/- 10*, vertical resolution 1.25 mrad.
Resolution Horizontal: 300 km (limb sounding), vertical 2 km
Coverage / Cycle N/A because of the occultation geometry. Only occurring at high latitudes
Mass Power Data Rate 8.9 Mbps

 

Providing Agency CNSA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2018 to ≥2026
Last update: 2018-06-12
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Limb sounders
  • Limb sounder
Mission objectives
Primary mission objectives
  • CO
  • CO2
  • H2O
  • N2O
  • NO
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Tentative Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
VariableRelevance for measuring this variableOperational limitationsExplanation
Atmospheric temperature5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR, TIR limb sounding by solar occultation. Self-calibrating
C2H25 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. C2H2 lines around 7.5 and 13.7 micrometers. Limb sounding by solar occultation. Self-calibrating
C2H65 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. C2H6 lines around 3.3 and 12 micrometers. Limb sounding by solar occultation. Self-calibrating
CFC-115 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. CFC-11 lines around 9.2 and 11.7 micrometers Limb sounding by solar occultation. Self-calibrating
CFC-125 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. CFC-12 lines around 8.8 and 10.8 micrometers. Limb sounding by solar occultation. Self-calibrating
CH45 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. CH4 lines around 4.3 and 7.7 micrometers. Limb sounding by solar occultation. Self-calibrating
ClONO25 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. ClONO2 lines around 5.7, 7.7 and 12.5 micrometers. Limb sounding by solar occultation. Self-calibrating
CO5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR spectrometry. CO lines around 4.6 micrometers. Limb sounding by solar occulattion. Self-calibrating
CO24 - fairLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. CO2 lines around 4.3 and 15 micrometers. Limb sounding by solar occultation. Self-calibrating
COS5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. COS lines around 4.8 and 11.6 micrometers. Limb sounding by solar occultation. Self-calibrating
H2O5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR/TIR spectrometry in a range centred on 6.3 micrometers. Limb sounding by solar occultation. Self-calibrating
HNO35 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. HNO3 lines around 5.9, 7.6 and 11.3 micrometers. Limb sounding by solar occultation. Self-calibrating
N2O5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. N2O lines around 4.5 and 7.7 micrometers. Limb sounding by solar occultation. Self-calibrating
N2O55 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. N2O5 lines around 5.8 and 8 micrometers. Limb sounding by solar occultation. Self-calibrating
NO5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR spectrometry. NO lines around 5.3 micrometers. Limb sounding by solar occultation. Self-calibrating
NO25 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. NO2 lines around 6.1 micrometers. Limb sounding by solar occultation. Self-calibrating
O35 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. Ozone band around 9.7 micrometers. Limb sounding by solar occultation. Self-calibrating
PAN5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. PAN lines around 5.7, 8.6 and 12.5 micrometers. Limb sounding by solar occultation. Self-calibrating
PSC occurrence5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry. Limb sounding by solar occultations. Self-calibrating
SF65 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. SF6 lines around 10.5 micrometers. Limb sounding by solar occultation. Self-calibrating
SO25 - marginalLimited to high atmosphere.. Limited to high latitudes.TIR spectrometry. SO2 lines around 7.3 and 8.6 micrometers. Limb sounding by solar occultation. Self-calibrating
Specific humidity5 - marginalLimited to high atmosphere.. Limited to high latitudes.MWIR and TIR spectrometry in the water vapour band around 6.3 micrometers Limb sounding by solar occultation, Self-calibrating