The Stratospheric InfraRed Interferometer Spectrometer (SIRIS) was a balloon-borne passive spectrometer developed at NASA's Goddard Space Flight Center (GSFC). It measured thermal emissions within the 5-15 μm spectral range to improve understanding of ozone behavior in the stratosphere. It had a vertical resolution of 3 km and could reach a vertical coverage of up to 40 km. SIRIS featured a field of view of 0.5 degrees and a scan time of 76 seconds. While primarily used on balloon platforms, it occasionally operated on ground-based platforms.

Instrument Details
- Spectrometer/Radiometer
- Earth Science > Spectral/engineering > Infrared Wavelengths > Thermal InfraredEarth Science > Spectral/engineering > Infrared Wavelengths > Infrared Radiance
- Lower Stratosphere
- 76 s
- 3 km
- 20-60 THz
- https://doi.org/10.1364/AO.27.004964
Currently unavailable
Currently unavailable
GSFC
Currently unavailable
Unpublished
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