Sentinel-3C
Vector drawing of the Sentinel-3 | |||||||||||||||||
| Mission type | Earth observation | ||||||||||||||||
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| Operator | ESA · EUMETSAT | ||||||||||||||||
| Website | Sentinel-3 (ESA) | ||||||||||||||||
| Mission duration | Planned: 7 years | ||||||||||||||||
| Spacecraft properties | |||||||||||||||||
| Spacecraft type | Sentinel-3 | ||||||||||||||||
| Bus | Prima | ||||||||||||||||
| Manufacturer | Thales Alenia Space | ||||||||||||||||
| Launch mass | 1,250 kg (2,756 lb) | ||||||||||||||||
| Dry mass | 1,150 kg (2,535 lb) | ||||||||||||||||
| Dimensions | 3.9 × 2.2 × 2.2 m (12.8 × 7.2 × 7.2 ft) | ||||||||||||||||
| Power | 2,300 watts | ||||||||||||||||
| Start of mission | |||||||||||||||||
| Launch date | 2026 (planned) | ||||||||||||||||
| Rocket | Vega-C | ||||||||||||||||
| Launch site | Kourou, ELV | ||||||||||||||||
| Contractor | Avio | ||||||||||||||||
| Orbital parameters | |||||||||||||||||
| Reference system | Geocentric | ||||||||||||||||
| Regime | Sun-synchronous | ||||||||||||||||
| Transponders | |||||||||||||||||
| Band | S band (TT&C support) X band (science data) | ||||||||||||||||
| Bandwidth | S band: 64 kbit/s uplink, 1 Mbit/s downlink X band: 2 × 280 Mbit/s | ||||||||||||||||
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Sentinel-3C is a future European Earth observation satellite dedicated to oceanography which is expected to launch in 2026. It is part of the Copernicus Programme, and the third of four planned Sentinel-3 satellites (after Sentinel-3B, launched on 16 February 2018).