Catalogue · 4 objects
Orbit class, mission and constellation are derived · methodology
4 results
Catalogue rows come from CelesTrak SATCAT; perigee, apogee and inclination shown here are catalogue values (the detail page shows the latest element set). Facet counts are computed live over the filtered set.
Orbit class
Constellation
| United States |
| United States |
| HST | 20580 | 1990-037B | Payload | Active | LEO | 470 / 472 km | 28.47° | 24 Apr 1990 | United States | United States |
| STS 31 | 20579 | 1990-037A | Payload | Decayed | LEO | 609 / 617 km | 28.47° | 24 Apr 1990↓ 29 Apr 1990 | United States | United States |
4 results