Issue 88

LM-11 Sea Launch of 3 Shiyan-24C Satellites

25 Dec: China launched a Long March-11 from a sea-based platform off the coast of Yangjiang, Guangdong Province, China. The rocket carried 3 Shiyan-24C satellites to Low Earth Orbit. According to official sources, the three Shiyan-24C satellites “will be mainly used for space science and technology experiments”. The…

25 Dec: China launched a Long March-11 from a sea-based platform off the coast of Yangjiang, Guangdong Province, China. The rocket carried 3 Shiyan-24C satellites to Low Earth Orbit. According to official sources, the three Shiyan-24C satellites “will be mainly used for space science and technology experiments”. The trio joins the Shiyan-24A/B satellites which China launched in June 2023. Launch Video.

– The three Shiyan-24C satellites are in a 541x544km orbit with a 95.6° inclination.

– The satellites are expected to contribute to a multitude of experiments, including those related to Earth observation and telecommunications. The satellites’ specific scientific objectives have not been publicly detailed.

Shiyan 24A & 24B were launched on the 2nd CAS Space Kinetica-1 back in June, a launch where most of the payloads are still not identified.

– Interestingly, the SY-24 satellites are nearly co-planar with the SJ-6-05A/B satellites launched on 9 Dec 2021.

-In Feb 2022 Feb, analysis from LEO Labs indicated SJ-6 05A and 05B had setup for rendezvous and proximity operations (RPO).

Long March-11 sea launch vehicle

Shiyan-24C mission patch

Shiyan-24C 01, 02 and 03 shown nearly co-planar with Shijian-6 05B