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Context: Recently, NASA’s high-resolution air pollution monitoring instrument TEMPO was launched by the SpaceX Falcon 9 rocket from the Cape Canaveral Space Force Station in Florida.
It will measure pollution and air quality across greater North America on an hourly basis during the daytime, from Puerto Rico up to the tar sands of Canada.
Its data will be used by agencies responsible for tackling atmospheric pollution.
TEMPO will match the rotation of the Earth, meaning it will stay over North America all time.
By monitoring the effects of everything from rush-hour traffic to pollution from forest fires and volcanoes, NASA data will help improve air quality across North America.
It has smaller size (size of a washing machine) and has been described as a chemistry laboratory in space.
It will be hosted on an Intelsat communications satellite in geostationary orbit.
Existing pollution-monitoring satellites are in low Earth orbit, which means they can only provide observations once a day at a fixed time.
TEMPO will be able to measure atmospheric pollution down to a spatial resolution of 4 square miles (10 square kilometers), or neighborhood level.
It will have multiple applications from measuring levels of various pollutants to providing air quality forecasts and helping the development of emission-control strategies.
It is a common orbit for weather satellites and communications satellites.
Air quality instruments measuring gases hadn’t been there yet.
Satellites in geostationary orbit (GEO) circle Earth above the equator from west to east.
GEO is at an altitude of 35,786 km.
They travel at the same rate as Earth.
This makes satellites in GEO appear to be ‘stationary’ over a fixed position.
GEO is used by satellites that need to stay constantly above one particular place over Earth, such as telecommunication satellites.
This way, an antenna on Earth can be fixed to always stay pointed towards that satellite without moving.
By: Shubham Tiwari ProfileResourcesReport error
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