Sentinel Satellites
The Sentinel Satellites are part of ESA’s Copernicus Earth Observation Program. Acktar coated several of its satellites – Sentinel 2,3,4,5.
| Mission Operator: | ESA | |||||
| Location: | LEO | |||||
Mission Objective
The Sentinel program is an ESA initiative managed under the Copernicus program. Each mission consists of joining two or more satellites and being designated to observe or monitor different earth parameters as part of the operational unit of Copernicus.
Mission Significance
The distribution of the mission objectives between the satellites allows for broader coverage of Earth observation and provides richer datasets for the Copernicus program. The Sentinel missions mark a new era in Earth observation focusing on delivering a wealth of operational data for decades. The six different missions carry a range of state-of-the-art technologies to supply a stream of complementary imagery and data tailored to the needs of Europe’s environmental monitoring Copernicus program.
Acktar’s Impact
Acktar participated in four sentinel missions by applying super black coating on vital instruments for each. To find out more, click on the Sentinel!
Key Areas Monitored by the Sentinel Satellites
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Sentinel-1 – Disaster Management, Environmental Monitoring, Security Services
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Sentinel-2 – Vegetation, Soil and Water Cover, Inland Waterways, Coastal Areas
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Sentinel-3 – Sea Surface Topography, Sea & Land Surface Temperature, Ocean & Land Color
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Sentinel-4 – Air Quality, Solar Radiation, Climate Monitoring
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Sentinel-5 – Air Quality, Ozone, Climate Change
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Sentinel-5P – Atmospheric Monitoring, Air Quality
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Sentinel-6 – Sea Surface Height, Climate Monitoring, Oceanographic Research
Why those Key Areas need to be monitored?
Deforestation and Forest Degradation: Providing crucial information for conservation efforts.
Sea Level Change: Essential for understating the severe impact of climate change.
Marine and Coastal Monitoring: Critical for marine ecosystems and fisheries management.
Agricultural Monitoring: Aiding in farming precision and food security assessments.
Air Quality: The detailed information about the atmospheric gases contributes to the understanding of air pollution and its impact on our health and climate.
Urban Development and Land Use: The provided data helps in understating infrastructure development, and the management of natural resources in urban areas.

Source: ESA
Impact – Future Plans
The impact of the Sentinel mission is so significant that is continues to expand! Six more missions are being developed to enhance the Copernicus Space Sector, fill its gaps, and provide a much comprehensive understanding of Earth’s observation. These missions aim to address various environmental monitoring needs and policy requirements:
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CO2M (2027) – GHGs Monitoring
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LSTM (2028) – Agricultural Management and Drought Monitoring
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CRISTAL (2028) – Polar Ice Monitoring
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CHIME (2029) – Hyperspectral Imaging for Environment
Was coated by Acktar! For further reading click here. -
CIMR (2029) – Sea Ice Concentration, Sea Surface Temperature, Polar Imaging
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ROSE-L (2029) – Land and Ocean Monitoring, All-Weather Observations
The Sentinel mission has revolutionized Earth observation by providing crucial data for scientific research, environmental management, and policy making. Following this legacy, the Sentinel Expansion satellites enhance these capabilities by monitoring various needed variables. The combination of those missions contributes to significant discoveries and empowers global progress toward a healthier and more sustainable planet.
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ACKTAR PARTS:
| Coating | Substrate | Instrument/Satellite |
| Fractal Black
Gold Magic Black Vacuum Black
|
Aluminum
Glass Invar SS Titanium
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Sentinel-2
Sentinel-3 Senitnel-4 Senitnel-5 |



