OSIRIS-APEX successfully completed a close flyby of the Sun without any damage, thanks to changes made to the layout of its photovoltaic panels. The spacecraft is now on an extended mission to asteroid Apophis after returning samples from asteroid Bennu to Earth. To reach Apophis in 2029, the probe needs to undergo several close flybys of the Sun, with the first one occurring on January 2.
During the close flyby, engineers prepared for the extreme radiation by collapsing one of the two photovoltaic panels to protect sensitive equipment while the remaining panel provided power to the ship. Telemetry data downloaded in mid-March confirmed that the spacecraft was in good condition after the close flyby. Despite concerns about the effects of high temperatures on sensitive equipment, scientists and engineers were pleased to find that an onboard camera actually performed better after being exposed to prolonged exposure to solar radiation. The camera saw a significant reduction in blobs caused by prolonged exposure to solar radiation, ensuring clear images for future missions.
The team behind OSIRIS-APEX remains vigilant about ensuring that their spacecraft’s safety and functionality are maintained during these close encounters with the Sun. They are unsure of how well their probe will hold up during five more close flybys scheduled for September 1 and beyond but continue to adapt and adjust as needed. The success of OSIRIS-APEX demonstrates how innovative solutions and careful planning can overcome challenges faced in space exploration.
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