Ranger Block III Satellite Bus
Data current as of 2026-07-20.
The Ranger Block III bus accounts for 4 cataloged objects, of which 0 are in orbit and 0 are active. 4 have reentered. Most are built by JPL. The largest operator on this bus is NASA. The first launched in 1964, the most recent in 1965.
0
In orbit
0
Active
4
Total launched
4
Reentered
Ranger Block III launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged Ranger Block III satellites.
| Manufacturer | JPL |
|---|---|
| Launch mass | 368 kg |
| Dry mass | 365 kg |
| Length | 3 m |
| Diameter | 1.5 m |
| Span | 4.6 m |
| Shape | Oct Cyl + Truss + 2 Pan |
Top operators
Top countries
US 4
Ranger Block III satellites
Track any of them live in KeepTrack.
Frequently asked questions
How many Ranger Block III satellites are there?
The catalog lists 4 objects built on the Ranger Block III bus. 0 are in orbit and 4 have reentered.
How many Ranger Block III satellites are in orbit?
0 Ranger Block III objects are currently in orbit, of which 0 carry an active status.
Who builds the Ranger Block III bus?
The Ranger Block III bus is most commonly built by JPL.
When did the first Ranger Block III satellite launch?
The first cataloged Ranger Block III satellite launched in 1964, and the most recent in 1965.