SILENTBARKER Satellite Bus
Data current as of 2026-07-21.
The SILENTBARKER bus accounts for 3 cataloged objects, of which 3 are in orbit and 3 are active. Most are built by UNKUS. The largest operator on this bus is NRO/SFSSC. All were launched in 2023.
3
In orbit
3
Active
3
Total launched
0
Reentered
SILENTBARKER launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged SILENTBARKER satellites.
| Manufacturer | UNKUS |
|---|---|
| Purpose | Space surveillance |
| Launch mass | 1200 kg |
| Dry mass | 1000 kg |
| Length | 3 m |
| Diameter | 1.5 m |
| Span | 10 m |
| Typical orbit | 1436 min period, 12° inclination |
Top operators
NRO/SFSSC 3
Top countries
US 3
SILENTBARKER satellites
Track any of them live in KeepTrack.
Frequently asked questions
How many SILENTBARKER satellites are there?
The catalog lists 3 objects built on the SILENTBARKER bus. 3 are in orbit and 0 have reentered.
How many SILENTBARKER satellites are in orbit?
3 SILENTBARKER objects are currently in orbit, of which 3 carry an active status.
Who builds the SILENTBARKER bus?
The SILENTBARKER bus is most commonly built by UNKUS.
When did the first SILENTBARKER satellite launch?
The cataloged SILENTBARKER satellites all launched in 2023.