Issue 82

China: Launches Yaogan-39-03

5 Oct 2023: China launched its third set of Yaogan-39 satellites again using a Long March-2D from the Xichang Satellite Launch Center. Beginning with the Yaogan-36-05 trio launched on 26 July 2023, China has launched 4 of these triplets into similar orbits in the past 70 days. Expect China to conduct two more launches…

5 Oct 2023: China launched its third set of Yaogan-39 satellites again using a Long March-2D from the Xichang Satellite Launch Center. Beginning with the Yaogan-36-05 trio launched on 26 July 2023, China has launched 4 of these triplets into similar orbits in the past 70 days. Expect China to conduct two more launches in the coming weeks with YG-39-04A/B/C & YG-39-05A/B/C. If correct, China will have created a 45 satellite constellation in less than 3 years. Launch Video.

-As with YG-39-01 & 02, as well as the 30 YG-35/36 satellites, the YG-39-03 trio is in a ~500km orbit with 35 degrees inclination.

– YG-39-03A/B/C are still conducting initial maneuvers and it is too early to assess formation.

-As with its predecessors, YG-39-03 satellites are co-planar with other YG-35 and YG-36 satellites. In this case YG-39-03 is co-planar with YG-35-01 and YG-36-01. All of the YG-35/36 and 39 satellites are co-planar with other satellites of this family.

-Here’s a list of all 5 orbits:

  • YG-35-01, YG-36-01 & YG-39-03
  • YG-35-02, YG-36-02 & YG-39-01;
  • YG-35-03, YG-36-04 & YG-39-02;
  • YG-35-04, YG-36-05 & TBD
  • YG-35-05, YG-36-03 & TBD

– More broadly it appears that China is continuing to experiment with various spacing alternatives for the YG-35/36/39 satellites while also grappling with anomalies from at least 2 of the 39 satellites

Near-polar view of the Yaogan-39-03 orbit

Yaogan-39-03 mission patch

Yaogan-39-02 mission patch

Yaogan-39-01 mission patch

Yaogan-36-05 mission patch - room remains for two more likely Yaogan-39 launches