Launch data:
| Designation: | 20959 / 90103A |
| Launch date | 26 Nov 1990 - 21:39:01 UT |
| Launch site: | CC, LC-17A |
| Launch vehicle: | Delta-7925 (D201) |
| Mission: | Military Navigation Commercial: Global Position |
| MEO Earth orbit on: | |
| Perigee / Apogee | 19781 x 20582 km |
| Eccentricity | 1.51E-02 |
| Inclination | 55.78 deg |
| Period | 717.94 min |
GPS IIA in assembly - Credit: Hughes.