Whoa! It's Jim Baer, of Ball Aerospace! I worked with Jim in about 2004 as the Ralph instrument was being designed, built, and tested at Ball in Boulder. All the Ball people have long-since moved on to other projects, but it was really cool to see Jim show up for the flyby.
Jim is pointing at the Ralph instrument. One portion of that is LEISA, the Linear Etalon Imaging Spectral Array. Ball program manager Lisa Hardaway passed away in 2017, and the LEISA spectrometer which she helped to develop has been renamed in her honor.