Vega C Delivers EU–China SMILE Space Weather Satellite Into Orbit

A European-Chinese space weather mission SMILE (Solar wind Magnetosphere Ionosphere Link Explorer) launched on May 18 atop a Vega C rocket from Kourou, deploying into a 707 km circular orbit about 56 minutes after liftoff. Over the next ~25 days SMILE will perform 11 engine burns to place the spacecraft into a highly elliptical orbit up to roughly 121,000 km above the North Pole and 5,000 km above the South Pole. SMILE’s four instruments (UVI, LIA, MAG on the platform and SXI on the payload) will study how the solar wind affects Earth’s magnetosphere to improve understanding of solar storms and space weather. The Chinese Academy of Sciences leads the satellite platform and three instruments, while ESA provides the payload module and will assist with orbit operations. The mission is planned for three years. Vega C, ESA’s 115-foot-tall rocket debuting in 2022, now has seven flights; Avio operates this first Vega C mission.