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. In December 2020, another two satellites were ordered.
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 97.86º. The satelites operate in the same orbital plane.
Nation: | Italy |
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Type / Application: | Earth observation (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: | 7 years |
Mass: | 2205 kg (#1) |
Orbit: | 619 km × 619 km, 97.86° |
Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
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CSG 1 | 2019-092A | 18.12.2019 | Ko ELS | Soyuz-ST-A Fregat-M | with CHEOPS, ANGELS, Eye-Sat, OPS-SAT | |
CSG 2 | 2022-008A | 31.01.2022 | CC SLC-40 | Falcon-9 v1.2 (Block 5) | ||
CSG 3 | - | 2024 | Ko ELV | Vega-C | ||
CSG 4 | - | 202x | Ko ELV | Vega-C (baselined) |