| Prime contractor | British Aerospace |
| Platform | ECS |
| Mass at launch |
F1:
1050 kg Others: 1185 kg |
| Mass in orbit | 585 kg |
| Dry mass | 500 kg |
| Payload mass | 117 kg |
| Length | 1.9 m |
| Width | 1.4 m |
| Height | 2.3 m |
| Solar array | 13.8 m span |
| Stabilization | 3-axis |
| DC power | EOL: 1000 W |
| Payload power | 638.5 W |
| Design lifetime | 7 years |