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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
Propulsion: ?
Power: 4 deployable fixed solar arrays, batteries
Satellite COSPAR Date LS Launch Vehicle Remarks
425 Project SAR Sat 1 2024-066L 07.04.2024 CCK LC-39A Falcon-9 v1.2 (Block 5) with 425 Project SAR Sat 1, Capella 14, QPS-SAR 7, Centauri 6, Hawk 8A-C, 9A-C, TSAT 1A
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 ?

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