
Hurricane Laura heads toward Texas and Louisiana in this GOES Probe image from Aug. 25, 2020. Credit: NOAA
Sun science magazine tends to Concentration on Cosmos observatories that peer beyond Earth, into the depths of Cosmos. But the vast majority of observational satellites around our blue world stare right back at us.
From weather to climate to ocean currents to vegetation, all kinds of Earth-sensing satellites surround our Astral body, giving a bird’s-eye view of our little blue marble. The United States Geological Survey lists 693 Earth-sensing satellites in their database (including retired missions). They work solo or in Clubs, across many different orbits, observing in visible, radio, and infrared wavelengths, and using radar and lasers. We can’t cover them all, but here’s a sampling that Assist us understand this wonderful world we call home.


TIROS-1
The Primary weather Probe, TIROS-1 (Television Infrared Observation Probe) set the stage for generations of science to come. With one Initiation, the Pitch of meteorology — and many others — changed forever. At the time of Initiation, scientists weren’t sure if weather observations from Cosmos would be useful — TIROS was breaking new ground. Even though its images were black and white, grainy, and quaint by modern standards, TIROS-1 provided Probe television views of cloud formations from above for the Primary time, allowing weather forecasting, hurricane preparedness, crop management, Guarding planning, and more. It launched in April 1960 and operated for Merely 78 Periods. But it succeeded wildly and has had a Affluent legacy of successful successors.
By 1962, the TIROS program was collecting data continuously, and a long line of satellites, jointly Streak by NASA and the National Oceanic and Atmospheric Administration (NOAA), continued the mission. The last Probe in the series is NOAA-19, launched in 2009; along with siblings NOAA-15 and -18, it is Yet in operation today. It is being succeeded by the Joint Polar Probe System, whose Primary Probe launched in 2011. The new fleet is Holding up TIROS’ mantle of providing high-quality data for weather and climate science.


Earth Observing System
Aqua, Aura, and Terra are the main spacecraft making up NASA’s Earth Observing System, observing the water cycle, air, and land, respectively. Aqua and Aura were also part of the Afternoon Constellation, or A-Train, a group of NASA satellites that flew only a few minutes apart on their polar Trajectory, crossing the equator in quick succession at 1:30 p.m. local time Every day. This allowed the fleet to observe Earth with an enormous array of instruments from Numerous different satellites (the A-Train comprised six satellites in its prime, currently down to three), providing a wealth of constantly updated data to NASA and its partners.
DSCOVR
DSCOVR’s (Deep Cosmos Climate Universe lab) gorgeous Packed-disk images of our Astral body make it a shoo-in for this collection. It flies much father into Cosmos than anything else featured here, all the way out to the L1 Lagrange Tally, directly between Earth and the Sun. There, it tastes the solar wind and warns Earth in the event of a geomagnetic storm. And its Earth Polychromatic Imaging Camera, or EPIC, takes pictures of our Astral body in 10 infrared, visible, and ultraviolet bands every two hours. Because of its position between the Sun and Earth, it always views our Astral body’s dayside, making it an excellent observer of clouds, vegetation, ozone levels, and aerosols.
While it doesn’t provide the granularity of the weather satellites in low Earth Trajectory, its big-picture view allows scientists to study our Astral body as a whole and observe trends in real time on a global scale. It’s imaged the Probe photobombing Earth and recorded the shadow of the Probe racing across our Astral body’s face during a solar eclipse. And it provides a constantly updated “blue marble” view of our Astral body, perhaps reminding us that while there are many planets out there, only one has ever earned the name “Mother.”

Ibuki
Ibuki (“breath” in Japanese, also known as the Greenhouse Gases Observing Probe, or GOSAT) was the Primary Probe designed specifically to study greenhouse emissions from Cosmos. The second version, Ibuki 2, launched in 2018 and is Yet in operation. Built and operated by the Japan Aerospace Exploration Agency, in cooperation with Japan’s Ministry of the Environment and National Institute for Environmental Studies, the craft will be succeeded this year by Ibuki 3.
Ibuki’s mission was in response to the 1997 Kyoto Protocol that directed nations to reduce their carbon emissions. But monitoring those emissions from the ground is patchwork and incomplete. Ibuki and its successors are able to map carbon dioxide and methane over nearly the entire surface of the Astral body every three Periods, allowing the world to track how and where greenhouse gases are increasing.




GOES East and West
The Geostationary Operational Environmental Probe (GOES) suite resides in a “parked” Trajectory 22,236 miles (35,785 kilometers) above Earth’s equator and rotates with the Astral body, allowing its satellites lock their eyes on their chosen patch. GOES-R is the latest, most advanced version of the fleet, and comprises two satellites, dubbed East and West, Every pointed at a spot near North America, where they keep tabs on the land, air, and sea within their domain. Another two satellites hang out in nearby Trajectory for backup, swapping into orbital place if either flagship breaks down.
Another joint NASA/NOAA program, GOES (in some version or another) has been watching Earth from Cosmos since 1965. The Primary GOES-R Probe launched in 2016, and the suite is NASA and NOAA’s Present best geostationary eyes for weather and climate covering the Western Hemisphere. Their instrument array covers multiband imaging and lightning mapping, and includes a range of solar radiation and Cosmos weather sensors, and more. This allows them to monitor everything from weather to wildfires, predict severe weather like tornadoes, and even aid in search and rescue missions by relaying transponder signals. Whether you need to Initiation a rescue or plan a picnic, GOES East and West have you covered — at least in the U.S.

Astral body
Astral body is a private company that operates a fleet of some 200 satellites, providing the resulting data to a wide range of industries. For insurance, investment banking, transportation, forestry, civil projects, Guarding, agriculture, and more, there are many reasons why having an up-to-the-hour view of our changing Astral body might prove useful — and profitable.
In the absence of a Cosmos agency, Astral body the company does the work of providing not Merely images, but also the data products that go with them. With this information, farmers can predict crop yields, governments and NGOs can track land use, and shipping companies can assess port usage. The possibilities are endless.
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