Robert Zimmerman: A cube sat is about 10cm across . . . China is putting up its own GPS – rushing to get its BeiDou Navigation Satellite System (BDS) constellation up this year.
Photo: Beidou Navigation Satellite System 2012. Coverage poylgon of BeiDou Navigation Satellite System since 2012: 55°E - 180°E, 55°S - 55°N
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Robert Zimmerman, BehindtheBlack.com & author,Genesis: The Miraculous story of Apollo 8, anent cube sats. A cube sat is about 10cm across, 4” square; the size of a golf ball. Surrey Satellite Technology, English, help universities build sats with their students. Will launch one in 2021 to test technology in lunar space, as a precursor to a 2023 launch carrying a more robust payload; all for communications for private use and governmental, to be used on the Moon. Investors now know that they can get a rocket to launch this particular satellite – it doesn't have to go as a secondary payload. NASA will take advantage of it. The only regs have to do with some specifics of launching. Small sat in India, its sixth launch of the year: competing with Rocket lab or Virgin Orbital. China is putting up its own GPS – rushing to get its BeiDou Navigation Satellite System (BDS) constellation up this year. The US has the premier system; Russians, next, and the EU is putting up its own, called Galileo. Indians, also: covering only India. South Korea bldg a small rocket engine, launched a first-stage, suborbital flight this week. Almost every satellite in orbit today will probably be replaced by multiple small sats.