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CSG 1, 2 (COSMO-SkyMed 2nd Gen.)

CSG 1 [Thales Alenia]

COSMO-SkyMed second generation (Constellation of Small Satellites for Mediterranean basin observation) or CSG is an Earth observation program of the Italian Space Agency (ASI) to replace the first generation COSMO-SkyMed system.

For the second generation, the COSMO-SkyMed constellation has been reduced from four to two spacecraft. The satellites are improved versions of the original design. They utilze an improved version of the Prima Bus. The CSG-SAR (COSMO-SkyMed Second Generation Synthetic Aperture Radar) is also an improved version of the first generation X-band SAR system. The contract was signed in September 2015.

The satellites will operate in the same circular sun-synchronous dawn-dusk orbit as the first generation satellites with a nominal altitude of 619 km and an inclination of 97.86. The satelites operate in the same orbital plane.

Nation: Italy
Type / Application: Earth Observing (Radar)
Operator: ASI
Contractors: Tales Alenia Space
Equipment: CSG-SAR X-band (9.6 GHz) synthetic aperture radar (SAR)
Configuration: Prima Bus
Propulsion:
Power: 2 deployable solar arrays, batteries
Lifetime:
Mass:
Orbit: 619 km × 619 km, 97.86
Satellite COSPAR Date LS Launch Vehicle Remarks
CSG 1 - 2018
CSG 2 - 2019

References: