Issue 82

China: Checking up on YG-39-01/02 & YG-40

7 Oct 2023: YG-39-01A/B/C satellites appear to have maneuvered into a “typical” formation with one lead and two followers with the followers being significantly closer to one another than the lead satellite. YG-39-02 appears to remain spread out with roughly equal distance between the three satellites. YG-40C continues…

7 Oct 2023: YG-39-01A/B/C satellites appear to have maneuvered into a “typical” formation with one lead and two followers with the followers being significantly closer to one another than the lead satellite. YG-39-02 appears to remain spread out with roughly equal distance between the three satellites. YG-40C continues to maintain a lower orbit than YG-40A & 40B and has passed its sister satellites twice. Expect YG-40C to raise its orbit at some point to create a nearly equilateral triangle formation similar to the YG-31 family.

Yaogan-39-01A/B/C in a typical lead-and-two-followers formation

Yaogan-39-02 satellites remain spread out with roughly equal spacing

Yaogan-40C in a lower orbit, passing the Yaogan-40A/B pair about every five days