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The Iridium system was designed to be accessed by small handheld phones, the size of a cell phone. While "the weight of a typical cell phone in the early 1990s was 10.5 ounces" [6] (300 grams) Advertising Age wrote in mid 1999 that "when its phone debuted, weighing 1 pound (453 grams) and costing $3,000, it was viewed as both unwieldly and expensive."
Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation , a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. [ 2 ]
Iridium satellite constellation; 0–9. 2009 satellite collision; F. Falcon 9 flight 29; I. ... Iridium Next; Iridium satellite; Iridium satellite phone This page was ...
Guidance, navigation and control (abbreviated GNC, GN&C, or G&C) is a branch of engineering dealing with the design of systems to control the movement of vehicles, especially, automobiles, ships, aircraft, and spacecraft. In many cases these functions can be performed by trained humans.
Iridium 7 was a U.S. Iridium communications satellite. It was launched into low Earth orbit from Vandenberg Air Force Base at 14:55 GMT on 5 May 1997, by a Delta II 7920-10C carrier rocket. [ 1 ] It was operated in Plane 4 of the Iridium satellite constellation , with an ascending node of 262.4°.
A mission control center (MCC, sometimes called a flight control center or operations center) is a facility that manages space flights, usually from the point of launch until landing or the end of the mission. It is part of the ground segment of spacecraft operations.
MSAT (Mobile Satellite) is a satellite-based mobile telephony service developed by the National Research Council Canada (NRC). Supported by a number of companies in the US and Canada, MSAT hosts a number of services, including the broadcast of CDGPS signals.
The squadron performs the command and control mission for the Global Positioning System satellite constellation. GPS is the world's premiere space-based position, velocity and timing system, capable of providing precision navigation and timing capability simultaneously to an unlimited number of properly equipped users.
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