Sputnik-40 Satellite Bus
Data current as of 2026-07-20.
The Sputnik-40 bus accounts for 3 cataloged objects, of which 0 are in orbit and 0 are active. 3 have reentered. Most are built by ACF/RUAF. The largest operator on this bus is ACF/RUAF. The first launched in 1997, the most recent in 1999.
0
In orbit
0
Active
3
Total launched
3
Reentered
Sputnik-40 launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged Sputnik-40 satellites.
| Manufacturer | ACF/RUAF |
|---|---|
| Purpose | Amateur radio communication |
| Launch mass | 3 kg |
| Dry mass | 3 kg |
| Length | 0.2 m |
| Diameter | 0.2 m |
| Span | 0.2 m |
| Shape | Sphere + Ant |
| Power | Batteries |
| Propulsion | None |
Top operators
ACF/RUAF 1 AMRU 1 RKKE 1
Top countries
RU 2 F 1
Sputnik-40 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| SPUTNIK JR 3 Sputnik-99 | 25685 | 1999-015C | AMRU | Apr 2, 1999 | 88 min, 51.7° | Reentered | ◉ |
| SPUTNIK 41 Spoutnik-41 | 25533 | 1998-062C | ACF/RUAF | Oct 25, 1998 | 87 min, 51.6° | Reentered | ◉ |
| SPUTNIK JR Spoutnik-40 | 24958 | 1997-058C | RKKE | Oct 5, 1997 | 87 min, 51.6° | Reentered | ◉ |
Frequently asked questions
How many Sputnik-40 satellites are there?
The catalog lists 3 objects built on the Sputnik-40 bus. 0 are in orbit and 3 have reentered.
How many Sputnik-40 satellites are in orbit?
0 Sputnik-40 objects are currently in orbit, of which 0 carry an active status.
Who builds the Sputnik-40 bus?
The Sputnik-40 bus is most commonly built by ACF/RUAF.
When did the first Sputnik-40 satellite launch?
The first cataloged Sputnik-40 satellite launched in 1997, and the most recent in 1999.