Core Points - The Wenchang Yaoguang Rocket Viewing Platform in Hainan officially commenced operations on May 20, 2023, coinciding with the "520 Aerospace Carnival Yaoguang Premiere" event, attracting thousands of attendees to celebrate China's space technology [5][6]. Group 1: Platform Details - The viewing platform is located approximately 2 kilometers from the Hainan commercial launch site and about 6 kilometers from the Wenchang launch site [5]. - Covering an area of approximately 19,000 square meters, the platform can accommodate over 2,000 people, featuring three levels: the first level for exhibitions and performances, and the second and third levels designated for viewing [5]. Group 2: Event Highlights - The event included a "Cloud Music Concert" that commenced with a piano performance, followed by the launch of the Long March 7 modified carrier rocket at around 7:50 PM, which was met with enthusiastic participation from the audience singing "My Motherland and I" [5]. - Attendees expressed excitement and pride in witnessing the rapid development of China's space industry, with personal stories highlighting the significance of the event for many, including couples celebrating meaningful moments [6][7].

Core Points - China successfully launched the Zhongxing 3B satellite using the Long March 7 modified carrier rocket from the Wenchang Space Launch Site [1] - The satellite has successfully entered its designated orbit and the launch mission is considered a complete success [1] - The primary purpose of the satellite is to provide voice, data, and broadcasting television transmission services to users [1]