iridium motorola

TSE - Program: Iridium Program: Iridium As the program was originaly thought with 77 satellites, it was named after the 77th element in the periodical table: Iridium The Iridium system is owned by Iridium LLC, an international consortium of 17 investor organizations representing telecommunications and industrial companies worldwide, with Motorola Satellite Communications Group serving as the prime contractor. The investors are: Iridium Africa Corporation, Iridium Canada, Inc., Iridium China (Hong Kong), Ltd., Iridium India Telecom Limited, Iridium Middle East Corporation, Iridium SudAmerica Corporation, Khrunichev State Research and Production Space Center of the Russian Federation, Korea Mobile Telecommunications of Korea, Lockheed Martin Corporation and Motorola, Inc. of the U.S., Nippon Iridium Corporation of Japan, o.tel.o communications GmbH of Germany, Pacific Electric Wire & Cable Co., Ltd. of Taiwan, Raytheon Company of the U.S., Sprint Corporation of the U.S., STET Group - Societa Finanziara Telefonica per Azioni of Italy, and Thai Satellite Telecommunications Co., Ltd. of Thailand. The cost of the global system is close to $7 billion. The commercial launch date is 23 Sep 1998 Cost per satellite: $62 million On 15 Aug 1999 the company filled for bankrupcy. In Feb 2000 Craig McCaw's Eagle River Investments provided $74.6 million. On 6 Mar 2000 McCaw's firm finaly said it was not interested in Iridium anymore; the firm wants to focus on data communication systems. Insurance paid $240 million for failed Iridium satellites. The network officially closed on 17 Mar 2000 after selling 55,000 terminals (approx $3000 each). The limited service still available stopped on 24 Aug 2000. But on 20 Nov 2000 the assets of Iridium LLC and its subsidiaries were sold to Iridium Satellite LLC for $25 million ($6.5 million in cash and $18.5 million in convertible debt). A few days later it was known that the DoD purchased 2 years of satellite telephony services from the new owner and would receive more than 15000 handsets and unlimited time usage (20000 government users). Contract worth $72 million. The contract has options that bring the total value to $252 million with service till Dec 2007. The system will be upgraded for classified services. In Apr 2001, investors from Brazil, Australia and Saudi Arabia are said to own 61 percent of Iridium LLC, which causes a problem as foreign ownership should be limited to 25% to get a licence. Dialup internet access is possible at 2.4 kbps and direct-internet data access tops at 10 kbps. FCC granted a new licence in July 2001 for a 3.5 MHz segment in both 1.990-2.025 and 2.165-2.200 GHz bands. In Dec 2001, the company states that they do not intend to launch new satellites before 2010 and build new satellites before 2020! 14 spare satellites are waiting on the ground. In Jul 2005, 66 satellites are operational and 11 are in orbital storage. Iridium launched studies for the next generation network (called Iridium Next) which should replace the present one from 2014 on. Will offer higher bandwidth for data transmissions. External resources http://www.iridium.com/ http://www2.satellite.eu.org/sat/vsohp/iridium.html Technical data Slots and planes slot satellites # plane 1 (158) 62, 63, 64, 65, 66, 67, 68, 70, 72, 73, 74, 75 plane 2 (189) 11, 20, 22, 23, 24, 25, 26, 45, 46, 47, 48, 49, 69, 76, 71 plane 3 (221) 27, 28, 29, 30, 31, 32, 33, 55, 57, 58, 59, 60 plane 4 (252) 4, 5, 6, 7, 8, 19, 34, 35, 36, 37, 51, 61 plane 5 (284) 9, 10, 11, 12, 13, 14, 16, 50, 52, 53, 54, 56, 83, 84, 85, 86 plane 6 (316) 15, 17, 18, 20, 21, 38, 39, 40, 41, 42, 43, 44, 77, 79, 80, 81, 82 In early 1999 12 satellites were reported as failed Constellation overview Orbit type LEO Orbit range 780 km, circular Nb of satellites 66 + 7 backup Nb of planes 6 Inclination 86.4° Nb beams per satellite 48 Coverage 4700 km² Modulation FNMA/TDMA Mobile frequencies Uplink: L-band Downlink: 1610-1626.5 MHz Satellite mass 725 kg Coverage all longitudes, 80N - 80S latitudes Operational date 23 Sep 1998 This document is part of The Satellite Encyclopedia, © Tag's Broadcasting Services, all rights reserved, NO REPRODUCTION ALLOWED. Please notify any errors, omissions, etc. V0.80.001 - Converted on Sun, 02 Mar 2008 13:52:17 GMT - Updated quarterly разделы тонировка стекол эмжс аденома предстательный железа lida очки ночной видение эдас-134 аденома предст.ж-зы пп-пленка эмжс ppg краска промальп схема зал вахтангова 5440.15 (крышка) купить nokia 9300i покраска рчв snr слимент лифт поглощение радиоволна конвейер охота зверь inerta краска пвс время кострома герб область управление иваново комплексный сайт купить букмекерский линия билет russia music awards рассылка база данный купить автотехнику peg perego venezia схема зал вахтангова флеш презентация купить элеваторный узел доставка суша съемный зубной протез фейрверк вечеринка покраска аэротенк отбеливание белье рак пищевод корпаративные праздник mobilux фотопечать диспетчеризация тонировка стекол архитектурный визуализация витрина подогреваемый купить айсбест анимация 3d график персонализация карта этнический психология концентрирование кислорода договор суррогатный мать колодец канализационный пластиковый рак простата красный площадь собор зубной протез сервис холодильник архыз тренировка память тренировка память эрозия шейка матка sharp ar-m205 обрезание поливомоечная машина ивановец вскрытие авто винный холодильник iridium motorola