TJS11 Satellite Bus
Data current as of 2026-07-20.
The TJS11 bus accounts for 5 cataloged objects, of which 4 are in orbit and 4 are active. Most are built by CAST. The largest operator on this bus is ZZB/CAST. The first launched in 2024, the most recent in 2026.
4
In orbit
4
Active
5
Total launched
0
Reentered
TJS11 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged TJS11 satellites.
| Manufacturer | CAST |
|---|---|
| Purpose | Technology, communications ? |
| Launch mass | 10000 kg |
| Dry mass | 6000 kg |
| Length | 7.0 m |
| Diameter | 4.0 m |
| Span | 30.0 m |
| Shape | Box+ 2 pan+dish |
| Power | 2 deployable solar arrays, batteries |
| Propulsion | ? |
| Typical orbit | 1436 min period, 4° inclination |
Top operators
ZZB/CAST 4 ZZB/SAST 1
Top countries
PRC 4 CN 1
TJS11 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| TJS-25 | 69474 | 2026-129A | ZZB/CAST | Jun 11, 2026 | 1436 min, 5.9° | Inactive | ◉ |
| TJS-23 | 67226 | 2025-306A | ZZB/CAST | Dec 20, 2025 | 1436 min, 5.5° | Active | ◉ |
| TJS-21 | 66586 | 2025-269A | ZZB/SAST | Nov 21, 2025 | 718 min, 63.3° | Active | ◉ |
| TJS-20 | 66142 | 2025-238A | ZZB/CAST | Oct 23, 2025 | 1436 min, 5.4° | Active | ◉ |
| TJS-11 Tongxin Jishu Shiyan 11 | 59020 | 2024-037A | ZZB/CAST | Feb 23, 2024 | 1436 min, 4.2° | Active | ◉ |
Frequently asked questions
How many TJS11 satellites are there?
The catalog lists 5 objects built on the TJS11 bus. 4 are in orbit and 0 have reentered.
How many TJS11 satellites are in orbit?
4 TJS11 objects are currently in orbit, of which 4 carry an active status.
Who builds the TJS11 bus?
The TJS11 bus is most commonly built by CAST.
When did the first TJS11 satellite launch?
The first cataloged TJS11 satellite launched in 2024, and the most recent in 2026.