NASA’s Lucy mission team has decided to suspend further solar array deployment activities. The team determined that operating the mission with the solar array in the current unlatched state carries an acceptable level of risk and further deployment activities are unlikely to be beneficial at this ti
within 243 miles of the Earth, through the Earth’s upper atmosphere. The solar array is producing the expected level of power at the present solar range and is expected to have enough capability to perform the baseline mission with margin.
Lucy will explore the Jupiter Trojan asteroids – thought to be “fossils of planet formation.” Credit: NASA’s Goddard Space Flight Center The team elected to suspend deployment attempts after the attempt on December 13, 2022, produced only small movement in the solar array. Ground-based testing indicated that the deployment attempts were most productive while the spacecraft was warmer, closer to the Sun. As the spacecraft is currently 123 million miles from the Sun and moving away at 20,000 mph , the team does not expect further deployment attempts to be beneficial under present conditions.
Due to the energy boost that the spacecraft received during last October’s Earth gravity assist, the spacecraft is now on an orbit that will take it over 315 million miles from the Sun before returning to Earth for a second Earth gravity assist on December 12, 2024. Over the next year and a half, the team will continue to collect data on how the solar array behaves during flight.
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