![]() ![]() SpaceX has not made public the specific spaceflight technology they intend to use to deal with the high-drag environment of VLEO. ![]() SpaceX plans were unusual in two areas: the company intended to use the little-used V band of the communications spectrum, and also intended to operationally use a new orbital regime, the very-low Earth orbit regime of ~340 km altitude, where atmospheric drag is quite high – normally resulting in short orbital lifetimes. Called the 'V-band low-Earth orbit (VLEO) constellation,' it would consist of 7,518 satellites and would orbit at just 340 kilometres (210 mi) altitude, while the smaller originally-planned group of 4,425 satellites would operate in the K a- and K u-bands and orbit at 1,200 kilometres (750 mi) altitude. By March 2017, SpaceX filed plans with the FCC to field a second orbital shell of more than 7500 'V-band satellites in non-geosynchronous orbits to provide communications services' in an electromagnetic spectrum that has not previously been heavily employed for commercial communications services. ![]()
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