Rocket: Chang Zheng 4B; Payload: Huan Jing 2A, Huan Jing 2B (HJ-2A, HJ-2B); Date: 27 September 2020, 0323 UTC; Launch site: Taiyuan Satellite Launch Center, China. The satellites were deployed into approx. 600 km x 654 km x 97.98 degrees Sun-synchronous orbits.