Kol'tso Satellite Bus
Data current as of 2026-07-20.
The Kol'tso bus accounts for 3 cataloged objects, of which 0 are in orbit and 0 are active. 3 have reentered. Most are built by YUZH. The largest operator on this bus is PVO. The first launched in 1988, the most recent in 1990.
0
In orbit
0
Active
3
Total launched
3
Reentered
Kol'tso launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged Kol'tso satellites.
| Manufacturer | YUZH |
|---|---|
| Purpose | Radar calibration |
| Launch mass | 1450 kg |
| Dry mass | 1450 kg |
| Length | 3.3 m |
| Diameter | 1.6 m |
| Span | 33.9 m |
| Shape | Cyl + 8 Pan + Ant |
| Power | 8 deployable fixed solar arrays, batteries |
Top operators
PVO 2 UNKS 1
Top countries
SU 3
Kol'tso satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| COSMOS 2106 Kosmos-2106 | 20966 | 1990-104A | PVO | Nov 28, 1990 | 87 min, 82.5° | Reentered | ◉ |
| COSMOS 2053 Kosmos-2053 | 20389 | 1989-100A | PVO | Dec 27, 1989 | 87 min, 73.5° | Reentered | ◉ |
| COSMOS 1985 Kosmos-1985 | 19720 | 1988-113A | UNKS | Dec 23, 1988 | 87 min, 73.5° | Reentered | ◉ |
Frequently asked questions
How many Kol'tso satellites are there?
The catalog lists 3 objects built on the Kol'tso bus. 0 are in orbit and 3 have reentered.
How many Kol'tso satellites are in orbit?
0 Kol'tso objects are currently in orbit, of which 0 carry an active status.
Who builds the Kol'tso bus?
The Kol'tso bus is most commonly built by YUZH.
When did the first Kol'tso satellite launch?
The first cataloged Kol'tso satellite launched in 1988, and the most recent in 1990.