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CSG 1, 2, 3, 4 (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. 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 |
|---|---|
| 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 | |
|---|---|---|---|---|---|---|
| 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) |
References:
- eoPortal Directory: COSMO-SkyMed Second Generation (CSG) Constellation
