NOAA’s Next JPSS Weather Satellite, JPSS-4, Completes Solar Array Deployment Test

In an accordion-like motion, five solar panels successfully unfolded from the JPSS-4 satellite during its solar array deployment test, marking a major milestone for the next satellite launch in NOAA’s Joint Polar Satellite System (JPSS). As one of the major testing milestones for the weather satellite, the solar array deployment test verified that the satellite’s solar panels can deploy once launched into orbit, where they will provide the satellite with necessary solar energy for mission operations. More

(Source: NESDIS - NOAA - Feb 18)