Seasonal and longitudinal variability in Io's SO2 atmosphere from 22 years of IRTF/TEXES observations

Rohini S. Giles, John R. Spencer, Constantine C. C. Tsang +3

Between 2001 and 2023, we obtained high spectral resolution mid-infrared observations of Io using the TEXES instrument at NASA's Infrared Telescope Facility. These observations wer…