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P. Morrissey (Caltech), GALEX Science Team
We present the flight performance of the Galaxy Evolution Explorer (GALEX), a NASA Small Explorer that launched in 2003 and is now performing a survey of the sky in two ultraviolet bands. The GALEX instrument comprises a 50~cm diameter modified Ritchey-Chretien telescope with imaging and objective-grism spectroscopic modes that feed a pair of large-format microchannel-plate-intensified, delay-line readout detectors. GALEX continues to meet its flight performance requirements, and on-going calibration work has significantly improved the quality of the survey data. We summarize these improvements and provide an operations overview and the current instrument status.
GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in April 2003. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.