The Interface Region Imaging Spectrograph is a NASA-funded Small Explorer which uses a high-frame-rate ultraviolet imaging spectrometer to make observations of the Sun. It provides 0.3 arcsec angular resolution and sub-angstrom spectral resolution at a one second cadence.
For more information see the mission/instrument paper which is available online for free.
This project is Copyright (c) SunPy Developers and licensed under the terms of the BSD 3-Clause license. See the licenses folder for more information.