[1] HUT was designed and built by a team based at Johns Hopkins University, led by Arthur Davidsen.

This instrument had a spectroscopic range of 82.5 to 185 nms, and a spectral resolution of about 0.3 nm.

[2] HUT was used to observe a wide range of astrophysical sources, including supernova remnants, active galactic nuclei, cataclysmic variable stars, as well as various planets in the Solar System.

[4] During the 1990 flight, HUT was used to make 106 observations of 77 astronomical targets.

[6] As of January 2023, HUT is now in storage at the Smithsonian National Air and Space Museum in Washington, D.C. in the United States.