Satellite phone Iridium 9500

Battery : Motorola 3.6 V Lithium Ion 1200 mAh SNN5324B
Usable on 12V or AC adapter

The former Iridium provided phones from two vendors, Kyocera and Motorola. The Motorola 9500 phone is a design from the first commercial phase of Iridium, whereas the 9575 model is the current version of the handset and was released in 2011.

The Iridium system requires 66 active satellites in orbit to complete its constellation and spare satellites are kept in-orbit to serve in case of failure. The satellites are in six polar low Earth orbital planes at a height of approximately 485 miles (780 km). Satellites communicate with neighboring satellites via Ka band intersatellite links to relay communications to and from ground stations. Most of these satellites were launched in the late 1990s before the company went through bankruptcy. Since the bankruptcy, only seven additional satellites have been launched but an updated constellation of 66 satellites called Iridium NEXT is currently being developed and is planned for launch between 2015 and 2017 on SpaceX Falcon 9launch vehicles from Vandenberg AFB Space Launch Complex 3 in California.^[18]

The Iridium network is unique in that it covers the whole Earth, including poles, oceans and airways. The company derives its name from the chemical elementiridium. The number of satellites projected in the early stages of planning was 77, the atomic number of iridium, evoking the metaphor of 77 electrons orbiting the nucleus; however 95 satellites have been launched so far; the atomic number of americium.

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