Daily brief · Tuesday, 27 October 2026 (UTC)
27 Oct: Two US military satellites are matching speeds about 2.3 km apart, Japan's military orbit changes ran at 5 this week (usually 0.3) and a Chinese satellite is closing on a US military satellite.
Top stories
- Possible rendezvous
Matching speeds takes deliberate burns: this is what a rendezvous looks like from outside. JACKAL-004 changed orbit in the days before.
- Busier than usual
Well outside that country's own normal: at least twice its usual week, beyond chance.
- Closing on another country's military satellite
In nearly the same orbit and getting closer. Most approaches are drift; the pair page shows the history.
- Military satellite closing on another country's
In nearly the same orbit and getting closer. Most approaches are drift; the pair page shows the history.
Over conflict zones in the next 24 hours
24 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.
Closing on another country's satellite
3In nearly the same orbit as another country's satellite, and getting closer, with at least one of the two still working.
Military satellites that changed orbit
1Confirmed by the next public orbit update.
Routine
- 9 pairs of one country's satellites drifting closer (GLONASS, IDSCS and RADUGA).
- 1 pair of satellites no longer working drifting closer.
- 13 satellites that aren't military changed orbit.
- Nothing new: shadowing, geostationary moves, military satellites leaving public tracking and breakups.
Also
- Starlink Group 15-16 · Falcon 9 Block 5 · Launch Successful · SpaceX · Vandenberg SFB, CA, USA · commercial
- 29 new objects catalogued, 27 of them Starlink.
- New object catalogued from earlier launch 2026-227: FLOCK 4J 10
- STARLINK-36255 predicted to re-enter around 19:29 UTC (US), uncertain by hours.
Built 28 Oct, 00:31 UTC from the event log: what overhead24 detected that day, in its own words. Sources: Space-Track.org (USSPACECOM) (orbit data and re-entries); GCAT (J. McDowell, planet4589.org/space/gcat) (owners and military class, CC BY 4.0); Launch Library 2 (The Space Devs) (launches); UCDP (where fighting was recorded, CC BY 4.0). Worked out from public orbit data, accurate to a few kilometres and less the older the data. Not for collision avoidance, navigation or targeting. Satellites pass over every country: being overhead says nothing about what a satellite is doing.
Earlier briefs
2026-11-022026-11-012026-10-312026-10-302026-10-292026-10-282026-10-262026-10-252026-10-242026-10-232026-10-222026-10-212026-10-202026-10-19