Chinese Hα Solar Explorer
China
Chinese H-alpha Solar Explorer (CHASE), also named Xihe after the solar deity, is China's first solar observatory. It was launched aboard a Long March 2D rocket on 14 October 2021. CHASE is a 508 kg (1, 120 lb) satellite operating at a 517-kilometer-altitude Sun-synchronous orbit, with an orbital period of around 94 minutes.
Observatory data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).