GPS II Satellite Bus
Data current as of 2026-07-20.
The GPS II bus accounts for 9 cataloged objects, of which 9 are in orbit and 0 are active. Most are built by RWISB. The largest operator on this bus is AFSSD2. The first launched in 1989, the most recent in 1990.
9
In orbit
0
Active
9
Total launched
0
Reentered
GPS II launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged GPS II satellites.
| Manufacturer | RWISB |
|---|---|
| Purpose | Navigation |
| Launch mass | 776 kg |
| Dry mass | 776 kg |
| Length | 2.4 m |
| Diameter | 1.8 m |
| Span | 5.3 m |
| Shape | Box + 2 Pan |
| Power | 2 deployable solar arrays, batteries |
| Propulsion | Star 37F |
| Design life | 7.5 years |
| Equipment | ? |
| Typical orbit | 760 min period, 55° inclination |
Top operators
AFSSD2 8 AFSD 1
Top countries
US 9
GPS II satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| NAVSTAR 21 (USA 64) GPS II-9 | 20830 | 1990-088A | AFSSD2 | Oct 1, 1990 | 767 min, 56.5° | Inactive | ◉ |
| NAVSTAR 20 (USA 63) GPS II-8 | 20724 | 1990-068A | AFSSD2 | Aug 2, 1990 | 769 min, 55.0° | Inactive | ◉ |
| NAVSTAR 19 (USA 54) GPS II-7 | 20533 | 1990-025A | AFSSD2 | Mar 26, 1990 | 754 min, 53.5° | Inactive | ◉ |
| NAVSTAR 18 (USA 50) GPS II-6 | 20452 | 1990-008A | AFSSD2 | Jan 24, 1990 | 760 min, 54.9° | Inactive | ◉ |
| NAVSTAR 17 (USA 49) GPS II-5 | 20361 | 1989-097A | AFSSD2 | Dec 11, 1989 | 761 min, 56.4° | Inactive | ◉ |
| NAVSTAR 16 (USA 47) GPS II-4 | 20302 | 1989-085A | AFSSD2 | Oct 21, 1989 | 760 min, 54.0° | Inactive | ◉ |
| NAVSTAR 15 (USA 42) GPS II-3 | 20185 | 1989-064A | AFSSD2 | Aug 18, 1989 | 774 min, 55.0° | Inactive | ◉ |
| NAVSTAR 14 (USA 38) GPS II-2 | 20061 | 1989-044A | AFSSD2 | Jun 10, 1989 | 762 min, 53.3° | Inactive | ◉ |
| NAVSTAR 13 (USA 35) GPS II-1 | 19802 | 1989-013A | AFSD | Feb 14, 1989 | 777 min, 55.0° | Inactive | ◉ |
Frequently asked questions
How many GPS II satellites are there?
The catalog lists 9 objects built on the GPS II bus. 9 are in orbit and 0 have reentered.
How many GPS II satellites are in orbit?
9 GPS II objects are currently in orbit, of which 0 carry an active status.
Who builds the GPS II bus?
The GPS II bus is most commonly built by RWISB.
When did the first GPS II satellite launch?
The first cataloged GPS II satellite launched in 1989, and the most recent in 1990.