Shi Jian 21 beside SJ-21 subsatellite
A satellite of Shanghai Academy of Space Technology (CASC 8th Acad) came up beside a rocket stage of Shanghai Academy of Space Technology (CASC 8th Acad), 5 km away at the nearest its sources state.
Reported: 1 public report other than Orbinauts names these two.
From the public record
- From
- Nov 15, 2021
- no source states the end
- Closest stated
- 5 km
- Orbit
- GEO
- geostationary orbit, over 156.0° E
The one that moved
Shi Jian 21
Shanghai Academy of Space Technology (CASC 8th Acad), CN
49330 · 2021-094A · launched Oct 24, 2021
The one it came up to
SJ-21 subsatellite
Shanghai Academy of Space Technology (CASC 8th Acad), CN
49382 · 2021-094C · launched Oct 24, 2021
What the sources state
Every day and distance here is the sources’ own, to the precision they state.
- When
- from Nov 15, 2021
- BesideNov 15, 2021
- re-rendezvous about 15 November 2021, about 5 km apart and synchronised
- Closest stated
- appear to remain five kilometers apart and deliberately synchronized
The detector was not yet running: it reads low Earth orbit since April 2026 and the geostationary belt since October 2026.
Reported elsewhere
Who else said these two were together, earliest first.
| Said on | Who | What |
|---|---|---|
| Jun 12, 2026 | Institute | Victoria Samson, SWF Chinese RPO fact sheet, 12 June 2026, p. 5; Mowthorpe and Trichas, The Space Review, 1 August 2022 |