Purple Gaze: Parker Solar Probe’s Solar Arrays Pass Laser Illumination Testing

Parker Solar Probe team members use lasers to ensure that the spacecraft’s solar arrays have survived harsh environmental testing and are operating correctly.
Credit: NASA/Johns Hopkins APL/Ed Whitman

NASA’s Parker Solar Probe passed laser illumination testing the week of Nov. 27, 2017. During this test, each segment of the spacecraft’s solar panels was illuminated with lasers to check that they were still electrically connected after the vigorous vibration and acoustic testing completed earlier this fall.
The spacecraft is in the midst of intense environmental testing at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in preparation for its journey to the Sun. These tests have simulated the noise and shaking the spacecraft will experience during its launch from Cape Canaveral, Florida, scheduled for July 31, 2018.
Parker Solar Probe’s integration and testing team must check over the spacecraft and systems to make sure everything is still in optimal working condition after experiencing these rigorous conditions – including a check of the solar arrays, which will provide electrical power to the spacecraft.
The rest of the article and video are here.