(a spectrometer used to view the corona during eclipses)
ACES (for Airborne Coronal Emission Surveyor)
is a Fourier transform spectrometer developed by the SAO for observing
the solarcorona during total solar eclipses from an aircraft.
It observed during the April 2024 eclipse.
It is a follow-on to Air-SPEC which was used in previous eclipses;
ACES covers a larger wavelength-range.
ACES observation was carried out using the ASPIRE stabilizer.