中国成功发射通信技术试验卫星二十一号

Core Points - China successfully launched the Communication Technology Test Satellite No. 21 on November 21, 2023, at 18:55 Beijing time using the Long March 3B rocket [1][3] - The satellite is primarily designed for satellite communication, broadcasting, television, and data transmission, and will conduct related technical experiments and validations [1] Group 1 - The launch took place at the Xichang Satellite Launch Center, marking a successful mission for the satellite [1][3] - The Long March 3B rocket, developed by China Aerospace Science and Technology Corporation, is part of the Long March 3A series and is recognized as a "gold medal rocket" [3] - This mission is the 13th launch of the Long March 3A series in 2023 and the 609th flight of the Long March series overall [3]