GALEX Telescope Vibration Response Reduction

GALEX, Galaxy Evolution Explorer, is a space UV imaging and spectroscopic earth orbiting mission, which will map the history of star formation. In addition, GALEX will perform the first ultraviolet all-sky imaging survey and will launch in early 2003 on a Pegasus. The GALEX Instrument, which consists of a Telescope, an optical wheel assembly, UV detectors, and support structure, was initially subjected to random vibration testing in October 2000. The Telescope secondary mirror exhibited a high dynamic amplification causing the peak response to far exceed design capability. In addition, the Telescope showe