The Copernicus Program & Sentinel satellites

The Copernicus Program & Sentinel satellites

An artist's depiction of the Sentinel-6 Michael Freilich satellite in orbit around Earth.

An artist’s depiction of the Sentinel-6 Michael Freilich satellite tv for computer in orbit around Earth.
(Recount credit: NASA)

The Copernicus program is a project streak by the European Union (EU) and European Condominium Company (ESA) that builds and manages a rapid of Earth-staring at satellites known as Sentinel. Eight missions be pleased been launched to this level, offering records about changes occurring to the oceans, land and surroundings of our planet.

Copernicus used to be created in 1998 when EU officers signed the Baveno Manifesto, a document proposing that Europe play a first-rate role in going thru worldwide environmental and climate factors, in Baveno, Italy, basically basically based on a history from the EU. The program used to be to begin with most continuously known as Global Monitoring for Environmental Security (GMES) and used to be intended to give data that can even aid humanitarian relieve, peacekeeping tasks, and border surveillance, along with environmental concerns. 

In 2004, ESA agreed to develop a set up apart-basically basically based a part of GMES that would encompass the Sentinel family of satellites. The program used to be renamed Copernicus in 2011 after the Renaissance-technology Polish astronomer Nicolaus Copernicus who first proposed that the Earth orbited around the sun, basically basically based on this method’s web pages, which writes this about the resolution:

“Copernicus opened man to an infinite universe, beforehand itsy-bitsy by the rotation of the planets and the sun around the Earth, and created an belief of a world without boundaries. Humanity used to be in a situation to be pleased the aid of his perception. This dwelling in circulate a spirit of discovery thru scientific research, which allowed us to contain higher the field we are living in.”

ESA deployed the major Sentinel satellite tv for computer, Sentinel-1A, in 2014 to continuously develop radar photography of our planet’s floor. Other satellites in the Copernicus program take excessive-resolution photography of land, provide air quality records, and measure the composition of the environment, basically basically based on an overview from the agency.

Per chance the most most in vogue Sentinel, Sentinel-6A, used to be launched in 2020. It offers extremely right measurements of sea stage upward push at some level of the globe.

Data from Copernicus is equipped freely to scientists all around the field. The program save €3.24 billion ($3.83 billion) between 2014 and 2021, basically basically based on ESA.

Right here we take a scrutinize at each and every of the Sentinel missions for my fragment.

Sentinel-1

This mission contains two satellites, Sentinel-1A and Sentinel-1B, each and every of which orbit from pole to pole around the Earth taking radar photography of our planet day and evening and at some level of all kinds of climate, basically basically based on ESA. The two satellites orbit on reverse aspects of the Earth, covering the entire planet every 12 days, basically basically based on the agency. 

Sentinel-1A launched in 2014, followed by Sentinel-1B in 2016. Both satellites rode a Russian Soyuz rocket to orbit from Europe’s spaceport in French Guiana at some level of their launches. Sentinel-1A used to be hit by a millimeter-size particle — in all likelihood a little bit of set up apart particles — in 2016 that prompted a sudden itsy-bitsy energy reduction, despite the truth that the satellite tv for computer persevered to operate most continuously afterwards. 

Each Sentinel-1A satellite tv for computer is ready 11.2 toes (3.4 meters) prolonged and weighs around 5,070 lbs. (2,300 kilograms), basically basically based on ESA.

Sentinel-2

Sentinel-2A and Sentinel-2B are twin satellites that launched in 2015 and 2017, respectively, atop Vega rockets from Europe’s spaceport shut to Kourou, French Guiana. Each satellite tv for computer captures excessive-resolution photography of our planet, serving to officers notice the field’s forests, changes in agricultural conceal and other land-basically basically based activities.

Both Sentinel-2 craft are about 11.2 toes (3.4 m) prolonged and weigh 2,513 lbs. (1,140 kg). The two satellites orbit from pole to pole, separated by 180 degrees along their orbital course, which enables the pair to maximise their protection of Earth

Related: Vega rocket launches Europe’s most modern Earth ‘Sentinel’ satellite tv for computer

In 2018, Sentinel-2A captured a seek for of a uncommon snow fall in the northwest fragment of the Sahara Desolate tract at some level of a winter storm, where some areas had been lined in as much as 15 inches (40 centimeters) of snow. And each and every Sentinel-1 and Sentinel-2 satellites be pleased been outdated to leer gargantuan icebergs shatter off from Antarctica.

Sentinel-3

The Sentinel-3A and Sentinel-3B satellites launched to orbit in 2016 and 2018, each and every the usage of the Russian Rockot rocket from the Plesetsk Cosmodrome in northern Russia. Admire Sentinels 1 and 2, the Sentinel-3 probes are in polar orbits, and notice a unfold of Earth processes, including sea floor high, sea ice temperatures, ocean floor wind speeds, atmospheric aerosols, vegetation on land, and snow and ice protection on land, basically basically based on the Copernicus program

The Sentinel-3 satellites are each and every 12.8 toes (3.9 m) prolonged and weigh 2,535 lbs. (1,150 kg). Through the years, the mission has captured important records about hurricanes in the Atlantic Ocean as successfully as wildfires in Siberia and the aerosols they produced

Sentinel-5

Sentinel-4 and Sentinel-5 are upcoming missions that will notice atmospheric composition, but neither has launched yet, basically basically based on ESA. Within the length in-between, the agency launched the Sentinel-5P satellite tv for computer, a precursor to trace global air pollution and maintain detailed maps of air quality around the field every 24 hours, in 2017 the usage of a Russian Rockot originate automobile from the Plesetsk Cosmodrome.

Sentinel-5P is 4.6 toes (1.4 m) prolonged and weighs 2,160 lbs. (980 kg), basically basically based on an informational web pages for the Copernicus program. The satellite tv for computer used to be one among plenty of that recorded drops in emissions around the field at some level of the coronavirus outbreak in 2020. 

Sentinel-6

The Sentinel-6 mission will lastly encompass two satellites, the major of which, Sentinel-6A, launched in 2020 the usage of a SpaceX Falcon 9 rocket from California’s Vandenberg Air Power Unhappy. A collaboration with NASA and the U.S. Nationwide Oceanic and Atmospheric Administration, Sentinel-6A will most seemingly be most continuously known because the Jason CS satellite tv for computer, and used to be renamed in honor of oceanographer Michael Freilich, the ragged head of NASA’s Earth Science division. 

Sentinel-6A is makes exercise of a radar altimeter to notice global sea-floor high alterations related to climate switch with unheard of accuracy. It is 16.7 toes (5.1 m) prolonged and weighs 2,628 lbs. (1,192 kg). The Sentinel-6B satellite tv for computer will join its companion in 2025, basically basically based on NASA

Future missions

The EU is studying six extra excessive-priority future missions as fragment of the Copernicus program, which would possibly possibly hotfoot most in vogue monitoring gaps and try at vegetation, floor temperatures, polar ice, carbon dioxide stages and sea-floor salinity, among other issues, basically basically based on ESA.

Extra sources

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Adam Mann


Adam Mann is a journalist that specialize in astronomy and physics tales. His work has regarded in the Wall Avenue Journal, Wired, Nature, Science, Contemporary Scientist, and plenty of other locations. He lives in Oakland, California, where he enjoys riding his bike. Notice him on Twitter @adamspacemann.

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