YG40 Satellite Bus
Data current as of 2026-07-20.
The YG40 bus accounts for 9 cataloged objects, of which 9 are in orbit and 9 are active. Most are built by DFHZ. The largest operator on this bus is CAST. The first launched in 2023, the most recent in 2025.
9
In orbit
9
Active
9
Total launched
0
Reentered
YG40 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged YG40 satellites.
| Manufacturer | DFHZ |
|---|---|
| Purpose | Military |
| Launch mass | 500 kg |
| Dry mass | 500 kg |
| Length | 2 m |
| Diameter | 1.5 m |
| Span | 4 m |
| Shape | Box + 2 Pan |
| Power | Solar arrays, batteries |
| Typical orbit | 102 min period, 86° inclination |
Top operators
CAST 6
Top countries
PRC 6 CN 3
YG40 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| OBJECT C | 65546 | 2025-199C | CAST | Sep 6, 2025 | 102 min, 86.0° | Active | ◉ |
| OBJECT B | 65545 | 2025-199B | CAST | Sep 6, 2025 | 102 min, 86.0° | Active | ◉ |
| OBJECT A | 65544 | 2025-199A | CAST | Sep 6, 2025 | 101 min, 86.0° | Active | ◉ |
| YAOGAN-40 02C | 63920 | 2025-096C | CAST | May 11, 2025 | 102 min, 86.0° | Active | ◉ |
| YAOGAN-40 02B | 63919 | 2025-096B | CAST | May 11, 2025 | 102 min, 86.0° | Active | ◉ |
| YAOGAN-40 02A | 63918 | 2025-096A | CAST | May 11, 2025 | 102 min, 86.0° | Active | ◉ |
| YAOGAN-40 01C Yaogan 40 hao 03 xing | 57833 | 2023-139D | CAST | Sep 10, 2023 | 102 min, 86.0° | Active | ◉ |
| YAOGAN-40 01B Yaogan 40 hao 02 xing | 57832 | 2023-139C | CAST | Sep 10, 2023 | 102 min, 86.0° | Active | ◉ |
| YAOGAN-40 01A Yaogan 40 hao 01 xing | 57830 | 2023-139A | CAST | Sep 10, 2023 | 102 min, 86.0° | Active | ◉ |
Frequently asked questions
How many YG40 satellites are there?
The catalog lists 9 objects built on the YG40 bus. 9 are in orbit and 0 have reentered.
How many YG40 satellites are in orbit?
9 YG40 objects are currently in orbit, of which 9 carry an active status.
Who builds the YG40 bus?
The YG40 bus is most commonly built by DFHZ.
When did the first YG40 satellite launch?
The first cataloged YG40 satellite launched in 2023, and the most recent in 2025.