Infrastructure: Spacecraft Overview – TSRQ1 2019

Infrastructure: Spacecraft Overview - TSRQ1 2019 examines global spacecraft/satellite operations conducted throughout the three space sectors, military, civil government, and commercial. This edition covers communication, PNT, and Earth observation/remote sensing…

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2013 – Satellite Orbits

There were ## active satellites in orbit at the end of 2013, all performing various missions depending on their configuration and orbit. Of all active satellites, ## (approximately ##% of…

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2005 – Satellite Orbits

As geostationary (GSO) satellites remain in an essentially fixed position relative to the ground at all times, they can communicate with fixed ground stations continually. Medium Earth orbit (MEO) and…

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2014 – Satellite Orbits

According to the Union of Concerned Scientists, a total of ## satellites were active at the end of 2014. These satellites are mostly located in low Earth orbit (LEO) between 200 and…

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2015 – Satellite Orbits – Snapshot

According to the Union of Concerned Scientists, a total of 1,381 satellites were still operational at the end of 2015.[efn_note]Union of Concerned Scientists. “UCS Satellite Database.” [/efn_note] These satellites…

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2011 – Satellite Orbits – Snapshot

The closer proximity to the Earth also greatly reduces signal delay from a LEO satellite to ground stations and allows for smaller receivers on the ground. While minimizing signal delay…

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