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425 Project SAR Sat 1, ..., 4
425 Project SAR satellite [Thales Alenia Space]
The South Korean 425 Project radar satellites are the radar component of the 425 Project reconnaissance satellite project.
The high resolution SAR satellites are being developed by a consortium consisting of Korean Aerospace Industries (KAI) and Hanwha Systems Corp with Thales Alenia Space providing the SAR payload.
The Thales Alenia Space SAR payload uses a specialized 5-meter antenna folded as 24 petals that will open in space to form a prabolic dish. Additionally TAS provides also the platform elements, especially for Control Momentum Gyro and sensors, derived from their HE-R1000 product (High Efficiency Radar).
In 2022 the SpaceX Falcon-9 v1.2 (Block 5) was chosen as launch vehicles. It is unclear, if dedicated or shared launches will be used.
| Nation: | South Korea |
|---|---|
| Type / Application: | Reconnaissance, radar |
| Operator: | South Korea’s Agency for Defence Development |
| Contractors: | Korean Aerospace Industries (KAI), Hanwha Systems Corp., Thales Alenia Space (payload) |
| Equipment: | SAR |
| Configuration: | |
| Propulsion: | ? |
| Power: | 4 deployable fixed solar arrays, batteries |
| Lifetime: | |
| Mass: | |
| Orbit: |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| 425 Project SAR Sat 1 | - | 202x | CC / Va | Falcon-9 v1.2 (Block 5) | with ? | |
| 425 Project SAR Sat 2 | - | 202x | CC / Va | Falcon-9 v1.2 (Block 5) | with ? | |
| 425 Project SAR Sat 3 | - | 202x | CC / Va | Falcon-9 v1.2 (Block 5) | with ? | |
| 425 Project SAR Sat 4 | - | 202x | CC / Va | Falcon-9 v1.2 (Block 5) | with ? |
References:
- Space News: Thales Alenia Space to build four radar satellites for South Korea, 5 December 2018
