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DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Footprint Library
Satellite Footprint Discussion
International Coordinations.of Satellite Positions/Inclined Orbit Satelites
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<blockquote data-quote="IanW" data-source="post: 647743" data-attributes="member: 176464"><p>Hi Turok,</p><p></p><p>The ITU-R (International Telecommunications Union- Radio) handles all co-ordination of satellite systems, they are a part of the UN, in effect. </p><p></p><p>Only a sovereign nation can make an application or 'filing' for a satellite system, many smaller nations and territories have acted for commercial satellite operators, famous examples are Gibraltar (Loral) , Bermuda (Intelsat), the Isle of Man (SES), and Tonga.</p><p></p><p>The filing process is long and tortuous, based on international diplomacy, it has been criticizes as not in the real world. However, it is there to ensure INTERFERENCE is kept to a minimum and as interference is mutually destructive to all parties then a procedure is necessary. Here is a paper from the ITU which illustrates the process for a satellite serving the Middle_East region;</p><p></p><p>_http://www.itu.int/ITU-D/tech/DevelopmentForums/2009/ARB/Presentations/Session2/RDF09_ARB_Presentation_VNozdrin_1.pdf</p><p></p><p></p><p>As for 'inclined' operation of nominally geo-synchronous satellites, this is permitted as the orbital position limit in the 'filing' is defined for the East-West parameter only. Holding the satellite stable in the North-South position is a commercial decision and is purely to allow fixed antennas on the ground to work reliably.</p><p></p><p>Inclined operation is when the satellite is allowed to drift North_South, this vastly extends the life of any satellite in GSO as normally 90% of the fuel on-board the satellite is used to correct for this drift. </p><p></p><p>Finally, once the fuel tank is almost empty, the last remaining fuel is used to 'boost' the satellite to a higher 'graveyard orbit'.</p><p></p><p>I notice you asked this question a year ago !</p><p></p><p>IanW.</p></blockquote><p></p>
[QUOTE="IanW, post: 647743, member: 176464"] Hi Turok, The ITU-R (International Telecommunications Union- Radio) handles all co-ordination of satellite systems, they are a part of the UN, in effect. Only a sovereign nation can make an application or 'filing' for a satellite system, many smaller nations and territories have acted for commercial satellite operators, famous examples are Gibraltar (Loral) , Bermuda (Intelsat), the Isle of Man (SES), and Tonga. The filing process is long and tortuous, based on international diplomacy, it has been criticizes as not in the real world. However, it is there to ensure INTERFERENCE is kept to a minimum and as interference is mutually destructive to all parties then a procedure is necessary. Here is a paper from the ITU which illustrates the process for a satellite serving the Middle_East region; _http://www.itu.int/ITU-D/tech/DevelopmentForums/2009/ARB/Presentations/Session2/RDF09_ARB_Presentation_VNozdrin_1.pdf As for 'inclined' operation of nominally geo-synchronous satellites, this is permitted as the orbital position limit in the 'filing' is defined for the East-West parameter only. Holding the satellite stable in the North-South position is a commercial decision and is purely to allow fixed antennas on the ground to work reliably. Inclined operation is when the satellite is allowed to drift North_South, this vastly extends the life of any satellite in GSO as normally 90% of the fuel on-board the satellite is used to correct for this drift. Finally, once the fuel tank is almost empty, the last remaining fuel is used to 'boost' the satellite to a higher 'graveyard orbit'. I notice you asked this question a year ago ! IanW. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Footprint Library
Satellite Footprint Discussion
International Coordinations.of Satellite Positions/Inclined Orbit Satelites
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