GALEX Status Update

June 9, 2009


On May 29, the Galaxy Evolution Explorer's far-ultraviolet instrument reported an overcurrent condition and shut down. The project reviewed data from the incident and confirmed it had the same characteristics as three previous incidents occurring in 2005, 2006 and 2007. The recovery of the instrument will require rapid on/off cycling of the detector's high-voltage while gradually increasing the voltage level. This process was successfully used in the recovery from the three previous incidents. Based on the last recovery performed in 2007, it is estimated the process will take around four weeks to complete. The cycling was started on June 3, and is expected to conclude by about July 1.