WN100 Satellite Bus
Data current as of 2026-07-22.
The WN100 bus accounts for 11 cataloged objects, of which 11 are in orbit and 11 are active. Most are built by IMICAS. The largest operator on this bus is CENTI. The first launched in 2018, the most recent in 2023.
11
In orbit
11
Active
11
Total launched
0
Reentered
WN100 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged WN100 satellites.
| Manufacturer | IMICAS |
|---|---|
| Purpose | Communication M2M/IoT, traffic monitoring |
| Launch mass | 40 kg |
| Dry mass | 40 kg |
| Length | 0.5 m |
| Diameter | 0.2 m |
| Span | 2 m |
| Shape | Box + 2 Pan |
| Power | 2 deployable solar arrays, batteries |
| Design life | 2-3 years |
| Equipment | Laser communication link |
| Typical orbit | 98 min period, 45° inclination |
Top operators
CENTI 5 HEAD 5
Top countries
CN 11
WN100 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| HEAD-3E Jiaotong-10 | 57630 | 2023-121E | HEAD | Aug 14, 2023 | 98 min, 45.0° | Active | ◉ |
| HEAD-3D Jiaotong-9 | 57629 | 2023-121D | HEAD | Aug 14, 2023 | 98 min, 45.0° | Active | ◉ |
| HEAD-3C Jiaotong-8 | 57628 | 2023-121C | HEAD | Aug 14, 2023 | 98 min, 45.0° | Active | ◉ |
| HEAD-3B Jiaotong-7 | 57627 | 2023-121B | HEAD | Aug 14, 2023 | 99 min, 45.0° | Active | ◉ |
| HEAD-3A Jiaotong-6 | 57626 | 2023-121A | HEAD | Aug 14, 2023 | 99 min, 45.0° | Active | ◉ |
| JIAOTONG 5 (HEAD-2H) Jiaotong-5 | 54691 | 2022-167K | HEAD | Dec 9, 2022 | 88 min, 97.5° | Active | ◉ |
| CENTISPACE-1 S6 Weili Kongjian 1-S6 | 54021 | 2022-126B | CENTI | Oct 7, 2022 | 98 min, 55.0° | Active | ◉ |
| CENTISPACE-1 S5 Weili Kongjian 1-S5 | 54020 | 2022-126A | CENTI | Oct 7, 2022 | 98 min, 55.0° | Active | ◉ |
| CENTISPACE-1 S4 Weili Kongjian 1-S4 | 53758 | 2022-108B | CENTI | Sep 6, 2022 | 98 min, 53.5° | Active | ◉ |
| CENTISPACE-1 S3 Weili Kongjian 1-S3 | 53757 | 2022-108A | CENTI | Sep 6, 2022 | 99 min, 53.5° | Active | ◉ |
| CENTISPACE-1 S1 Xiangrikui 1 | 43636 | 2018-075A | CENTI | Sep 29, 2018 | 99 min, 97.9° | Active | ◉ |
Frequently asked questions
How many WN100 satellites are there?
The catalog lists 11 objects built on the WN100 bus. 11 are in orbit and 0 have reentered.
How many WN100 satellites are in orbit?
11 WN100 objects are currently in orbit, of which 11 carry an active status.
Who builds the WN100 bus?
The WN100 bus is most commonly built by IMICAS.
When did the first WN100 satellite launch?
The first cataloged WN100 satellite launched in 2018, and the most recent in 2023.