XYZ Satellite Bus
Data current as of 2026-07-20.
The XYZ bus accounts for 4 cataloged objects, of which 3 are in orbit and 3 are active. 1 have reentered. Most are built by CAST. The largest operator on this bus is CAST. The first launched in 2020, the most recent in 2021.
3
In orbit
3
Active
4
Total launched
1
Reentered
XYZ launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged XYZ satellites.
| Manufacturer | CAST |
|---|---|
| Purpose | ? |
| Launch mass | 3000 kg |
| Dry mass | 2000 kg |
| Length | 5 m |
| Diameter | 3 m |
| Span | 9 m |
| Shape | Box + 2 pan |
| Power | solar arrays, batteries |
| Propulsion | ? |
| Typical orbit | 1433 min period, 4° inclination |
Top operators
CAST 4
Top countries
CN 4
XYZ satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| SHIYAN 12 02 (SY-12 02) Shiyan 12-02 | 50322 | 2021-129B | CAST | Dec 23, 2021 | 1433 min, 3.8° | Active | ◉ |
| SHIYAN 12 01 (SY-12 01) Shiyan 12-01 | 50321 | 2021-129A | CAST | Dec 23, 2021 | 1439 min, 3.8° | Active | ◉ |
| SHIYAN 9 (SY-9) Shiyan 9 | 47851 | 2021-019A | CAST | Mar 11, 2021 | 1436 min, 16.5° | Active | ◉ |
| XJY-7 Xinjishu Yanzheng 7 | 47298 | 2020-102C | CAST | Dec 22, 2020 | 88 min, 97.3° | Reentered | ◉ |
Frequently asked questions
How many XYZ satellites are there?
The catalog lists 4 objects built on the XYZ bus. 3 are in orbit and 1 have reentered.
How many XYZ satellites are in orbit?
3 XYZ objects are currently in orbit, of which 3 carry an active status.
Who builds the XYZ bus?
The XYZ bus is most commonly built by CAST.
When did the first XYZ satellite launch?
The first cataloged XYZ satellite launched in 2020, and the most recent in 2021.