28 Oct: COSMOS 2612 (Russia) is holding station about 504 km from ICEYE-X36 (USA), a possible breakup, with 4 new pieces catalogued from USA 32 (launched 1988) and a satellite from Singapore is closing on a US military satellite.

1. Shadowing another country's satellite
   COSMOS 2612 is holding 495 to 505 km from ICEYE-X36 in the same orbit

   Holding a steady distance in another satellite's orbit takes deliberate station-keeping. Same orbit plane and height, at a steady distance, since 27 Oct or before.

2. Possible breakup
   4 new pieces catalogued from USA 32 (launched 1988)

   New pieces from an old launch can mean something broke up, or old debris catalogued late. A burst of new pieces from an old launch usually means something broke up recently, or that older debris was only now catalogued..

3. Closing on another country's military satellite
   ST 2 is closing on WGS F4 (USA 233): 314 km a day ago, 287 km now

   In nearly the same orbit and getting closer. Most approaches are drift; the pair page shows the history.

4. Closing on another country's military satellite
   QZS-3 is closing on COSMOS 2589: 515 km a day ago, 477 km now

   In nearly the same orbit and getting closer. Most approaches are drift; the pair page shows the history.

4 or more of one country's working military satellites, from different launches, over places where fighting was recorded this year, at once. Passes are fixed by orbits days ahead, so a cluster is usually a coincidence.

• China: 4–5 military satellites at once over the fighting in Pakistan (4 times), Colombia (3 times), Iran (3 times), Sudan (2 times), Ethiopia, Myanmar, Nigeria and Russian Federation
  29 Oct, 00:44 UTC · 16 clusters in the next 24 hours, the first at 00:44 UTC; 1 satellite in them changed orbit in the past week
• USA: 4 military satellites at once over the fighting in Russian Federation and Sudan
  29 Oct, 11:55 UTC · 2 clusters in the next 24 hours, the first at 11:55 UTC

In nearly the same orbit as another country's satellite, and getting closer, with at least one of the two still working.

• PRSC-EO1 is closing on OBJECT CP: 467 km a day ago, 185 km now
  28 Oct, 00:20 UTC

Confirmed by the next public orbit update.

• CHINASAT 2C changed orbit: orbit lowered by 2.2 km
  28 Oct, 01:46 UTC

• 6 pairs of one country's satellites drifting closer (GLONASS and YAOGAN-43).
• 2 pairs of satellites no longer working drifting closer.
• 2 satellites that aren't military changed orbit.
• Nothing new: possible rendezvous, geostationary moves, military satellites leaving public tracking and countries busier than usual.

• STARLINK-1309 predicted to re-enter around 23:10 UTC (US), uncertain by hours.

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