The IGS-Optical (Intelligence Gathering Satellite), built by Mitsubishi Electric (MELCO), is an optical reconnaisance satellite with a projected life of 5 years. The satellite will be operated by the Cabinet Satellite Information Center. The 850 kg IGS-Optical 1 is equipped with an optical sensor. The resolution is probably about 1 meter. The satellite serves both Japan's national defense and civil natural disaster monitoring.
| Nation: | Japan |
|---|---|
| Type / Application: | Reconnaissance, optic |
| Operator: | |
| Contractors: | Mitsubishi Electric (MELCO) |
| Equipment: | ? |
| Configuration: | ? |
| Propulsion: | ? |
| Power: | |
| Lifetime: | |
| Mass: | 850 kg |
| Orbit: | 483 km × 495 km, 97.4° (#1a) |
| Satellite | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|
| IGS-Optical 1 (IGS 1a) | 28.03.2003 | Ta YLP-1 | H-2A-2024 | with IGS-Radar 1 | |
| IGS-Optical (2) (IGS (2a)) | 29.11.2003 | Ta YLP-1 | F | H-2A-2024 | with IGS-Radar (2) |
| IGS-Optical 2 (IGS 2a) | 11.09.2006 | Ta YLP-1 | H-2A-202 |
