This seriously is an observatory that needs to be saved. It still has so much life left, it's critical for supplementing observations of transient events, which is a big focus in astronomy right now: being able to record events that only last a few minutes to a few hours across as many wavelengths as possible. In the grand scheme of things, it costs peanuts to fund. Losing this observatory is going to be a huge blow to high-energy astronomy
Please, if you're an American, write to your reps. This thing is a treasure to the whole world.