The image filename contains SWIR which is a clue. Several instruments can sense emissions in short-wave IR which light up for fires (and hot smoke plumes, and

The image filename contains SWIR which is a clue. Several instruments can sense emissions in short-wave IR which light up for fires (and hot smoke plumes, and some industrial plants). E.g., VIIRS which is a successor to MODIS (https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-i-band-375-m-active-fire-data https://www.earthdata.nasa.gov/data/instruments/viirs/viirs-...). The resolution in the posted image is much better than satellite, however. This implies that it's an airborne platform like FIRIS (https://wifire.ucsd.edu/firis-in-depth https://wifire.ucsd.edu/firis-in-depth). It also uses IR.