Solar Pioneer Satellite Bus
Data current as of 2026-07-20.
The Solar Pioneer bus accounts for 4 cataloged objects, of which 4 are in orbit and 0 are active. Most are built by TRW. The largest operator on this bus is NASA. The first launched in 1965, the most recent in 1968.
4
In orbit
0
Active
4
Total launched
0
Reentered
Solar Pioneer launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged Solar Pioneer satellites.
| Manufacturer | TRW |
|---|---|
| Launch mass | 63 kg |
| Dry mass | 63 kg |
| Length | 0.9 m |
| Diameter | 0.9 m |
| Span | 3.3 m |
| Shape | Cyl + 3 Ant |
| Typical orbit | 94 min period, 56° inclination |
Top operators
Top countries
US 4
Solar Pioneer satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| PIONEER 9 Pioneer 9 | 03533 | · | ARC | Nov 8, 1968 | · | Inactive | ◉ |
| PIONEER 8 Pioneer 8 | 03066 | · | ARC | Dec 13, 1967 | · | Inactive | ◉ |
| PIONEER 7 Pioneer 7 | 02398 | · | ARC | Aug 17, 1966 | · | Inactive | ◉ |
| PIONEER 6 Pioneer 6 | 01841 | 1965-105A | ARC | Dec 16, 1965 | 94 min, 56.0° | Inactive | ◉ |
Frequently asked questions
How many Solar Pioneer satellites are there?
The catalog lists 4 objects built on the Solar Pioneer bus. 4 are in orbit and 0 have reentered.
How many Solar Pioneer satellites are in orbit?
4 Solar Pioneer objects are currently in orbit, of which 0 carry an active status.
Who builds the Solar Pioneer bus?
The Solar Pioneer bus is most commonly built by TRW.
When did the first Solar Pioneer satellite launch?
The first cataloged Solar Pioneer satellite launched in 1965, and the most recent in 1968.