https://gssc.esa.int/navipedia/index.php?action=history&feed=atom&title=GAGAN
GAGAN - Revision history
2026-05-08T00:37:35Z
Revision history for this page on the wiki
MediaWiki 1.43.1
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15889&oldid=prev
Gema.Cueto: Fixed wikipedia reference
2021-06-22T10:47:19Z
<p>Fixed wikipedia reference</p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Architecture==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Architecture==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:gagan_overview.png|GAGAN overview.<ref name="GAGAN WIKI">[<del style="font-weight: bold; text-decoration: none;">Wikipedia</del>:<del style="font-weight: bold; text-decoration: none;">GPS_Aided_Geo_Augmented_Navigation|</del>GPS Aided Geo Augmented Navigation on Wikipedia]</ref>|400px|thumb]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:gagan_overview.png|GAGAN overview.<ref name="GAGAN WIKI">[<ins style="font-weight: bold; text-decoration: none;">https</ins>:<ins style="font-weight: bold; text-decoration: none;">//en.wikipedia.org/wiki/GPS-aided_GEO_augmented_navigation </ins>GPS Aided Geo Augmented Navigation on Wikipedia]</ref>|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The main components of the GAGAN Architecture are:<ref name="GAGAN_ICG8"/></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The main components of the GAGAN Architecture are:<ref name="GAGAN_ICG8"/></div></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15888&oldid=prev
Gema.Cueto: /* GAGAN Introduction */
2021-06-22T09:57:49Z
<p><span class="autocomment">GAGAN Introduction</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:57, 22 June 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>On 15 April 2010, an attempt to launch the first GAGAN navigation payload took place. The equipment was installed in the satellite, GSAT-4, but, unfortunately, the launch failed and the GEO satellite never reached its nominal orbit<ref>[http://www.thehindu.com/news/article398070.ece ''India’s own cryogenic rocket launch fails'']The Hindu news, 15th April 2010</ref>. In May 2011, the GSAT-8 satellite carrying a GAGAN SBAS payload was successfully launched by the Ariane-V launch vehicle of Arianespace from Kourou, French Guiana<ref>[https://www.geospatialworld.net/news/indias-gsat-8-satellite-to-help-gagan/ India’s GSAT-8 satellite to help GAGAN, Geospatial World, May 2011]</ref>. Later on 28 September 2012, another Ariane 5 rocket successfully launched the India's GSAT-10 satellite which carries the second GAGAN payload <ref>[https://www.gpsworld.com/gsat-10-gagan-satellite-launched/ GSAT-10 GAGAN Satellite Launched, GPSWorld, October 2012]</ref>.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>On 15 April 2010, an attempt to launch the first GAGAN navigation payload took place. The equipment was installed in the satellite, GSAT-4, but, unfortunately, the launch failed and the GEO satellite never reached its nominal orbit<ref>[http://www.thehindu.com/news/article398070.ece ''India’s own cryogenic rocket launch fails'']The Hindu news, 15th April 2010</ref>. In May 2011, the GSAT-8 satellite carrying a GAGAN SBAS payload was successfully launched by the Ariane-V launch vehicle of Arianespace from Kourou, French Guiana<ref>[https://www.geospatialworld.net/news/indias-gsat-8-satellite-to-help-gagan/ India’s GSAT-8 satellite to help GAGAN, Geospatial World, May 2011]</ref>. Later on 28 September 2012, another Ariane 5 rocket successfully launched the India's GSAT-10 satellite which carries the second GAGAN payload <ref>[https://www.gpsworld.com/gsat-10-gagan-satellite-launched/ GSAT-10 GAGAN Satellite Launched, GPSWorld, October 2012]</ref>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>GAGAN Stability tests were successfully completed in June 2013. The overall performance of the systems was reviewed by the review committee of the DGCA (Director General of Civil Aviation)<ref>[http://www.isro.gov.in/applications/satellite-navigation-programme GPS Aided Geo Augmented Navigation (GAGAN)]</ref>. In December 2013, the system was certified for RNP 0.1 and started APV1 operations. The Final Operational Phase (FOP) was completed in 2014.<ref name="DGCA">[http://gagan.aai.aero/gagan/content/dgca-certification DGCA certification]</ref><ref>[https://www.icao.int/APAC/APAC-RSO/GBASSBAS%20Implementation%20Workshop/1-7_System%20Development-GAGAN_final%20(M%20Rao).pdf System Development - GAGAN: GBAS/SBAS Implementation Workshop, Seoul, June 2019]</ref></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>GAGAN Stability tests were successfully completed in June 2013. The overall performance of the systems was reviewed by the review committee of the DGCA (Director General of Civil Aviation)<ref>[http://www.isro.gov.in/applications/satellite-navigation-programme GPS Aided Geo Augmented Navigation (GAGAN) <ins style="font-weight: bold; text-decoration: none;">in ISRO website</ins>]</ref>. In December 2013, the system was certified for RNP 0.1 and started APV1 operations. The Final Operational Phase (FOP) was completed in 2014.<ref name="DGCA">[http://gagan.aai.aero/gagan/content/dgca-certification DGCA certification]</ref><ref>[https://www.icao.int/APAC/APAC-RSO/GBASSBAS%20Implementation%20Workshop/1-7_System%20Development-GAGAN_final%20(M%20Rao).pdf System Development - GAGAN: GBAS/SBAS Implementation Workshop, Seoul, June 2019]</ref></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>On 21 April 2015 it was certified for approach with vertical guidance (APV1) becoming the third SBAS in the world to achieve it and the first to do so operating in the equatorial region.<ref>[https://www.icao.int/APAC/APAC-RSO/GBASSBAS%20Implementation%20Workshop/3-7_GAGAN_Regional_Service_Availability%20(T%20Schemmp).pdf GAGAN Regional Service Availability]</ref><ref name="DGCA"/></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>On 21 April 2015 it was certified for approach with vertical guidance (APV1) becoming the third SBAS in the world to achieve it and the first to do so operating in the equatorial region.<ref>[https://www.icao.int/APAC/APAC-RSO/GBASSBAS%20Implementation%20Workshop/3-7_GAGAN_Regional_Service_Availability%20(T%20Schemmp).pdf GAGAN Regional Service Availability]</ref><ref name="DGCA"/></div></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15887&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:49:01Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Signals and Performances==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Signals and Performances==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Real time monitoring can be accessed[http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Real time monitoring can be accessed [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<ref name="GAGAN WIKI"/>.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<ref name="GAGAN WIKI"/>.</div></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15886&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:48:50Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Signals and Performances==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==GAGAN Signals and Performances==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. <del style="font-weight: bold; text-decoration: none;">Last update </del>can be <del style="font-weight: bold; text-decoration: none;">found </del>[http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. <ins style="font-weight: bold; text-decoration: none;">Real time monitoring </ins>can be <ins style="font-weight: bold; text-decoration: none;">accessed</ins>[http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<ref name="GAGAN WIKI"/>.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<ref name="GAGAN WIKI"/>.</div></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15885&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:47:53Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:47, 22 June 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<del style="font-weight: bold; text-decoration: none;">.</del><ref name="GAGAN WIKI"/></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 signals (this latter still under development), with Global Positioning System (GPS) type modulation<ref name="GAGAN WIKI"/><ins style="font-weight: bold; text-decoration: none;">.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15884&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:47:32Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:47, 22 June 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l47">Line 47:</td>
<td colspan="2" class="diff-lineno">Line 47:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 (this latter still under development) <del style="font-weight: bold; text-decoration: none;">signals</del>, with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 <ins style="font-weight: bold; text-decoration: none;">signals </ins>(this latter still under development), with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15883&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:47:12Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:47, 22 June 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l47">Line 47:</td>
<td colspan="2" class="diff-lineno">Line 47:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 (this latter still <del style="font-weight: bold; text-decoration: none;">in </del>development) signals, with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 (this latter still <ins style="font-weight: bold; text-decoration: none;">under </ins>development) signals, with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15882&oldid=prev
Gema.Cueto: /* GAGAN Signals and Performances */
2021-06-22T09:46:55Z
<p><span class="autocomment">GAGAN Signals and Performances</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:46, 22 June 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l47">Line 47:</td>
<td colspan="2" class="diff-lineno">Line 47:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:GAGANperformance.jpg|GAGAN performance<ref name="GAGAN FAQ"/>. Last update can be found [http://gagan.aai.aero/gagan/content/apv-1-rnp-01-services here].|400px|thumb]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 (still in development) signals, with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The GAGAN GEO satellites broadcast SBAS navigation data using L1 and L5 (<ins style="font-weight: bold; text-decoration: none;">this latter </ins>still in development) signals, with Global Positioning System (GPS) type modulation.<ref name="GAGAN WIKI"/></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The specification of the SBAS message data format is contained in the [http://www.icao.org ICAO] SARPS Appendix B for the aspects related with the signal in space, as well as in the RTCA MOPS DO-229 for the minimum performance requirements applicable to the airborne SBAS receiver equipment. The format of the messages is thoroughly explained in the article [[The EGNOS SBAS Message Format Explained]]. (See the article [[SBAS Fundamentals]] for more information.)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>
Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15881&oldid=prev
Gema.Cueto: /* GAGAN Architecture */
2021-06-22T09:46:16Z
<p><span class="autocomment">GAGAN Architecture</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:46, 22 June 2021</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l34">Line 34:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The main components of the GAGAN Architecture are:<ref name="GAGAN_ICG8"/></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The main components of the GAGAN Architecture are:<ref name="GAGAN_ICG8"/></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*Space segment: three operational GEO satellites<ref name="currProg"> Navigation Current Programme, Indian Space Research Organization</ref><ref name=" futProg">Forth Future Programme, Indian Space Research Organization</ref><ref name="Ariane5"/>: </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">'''</ins>Space segment<ins style="font-weight: bold; text-decoration: none;">'''</ins>: three operational GEO satellites<ref name="currProg"> Navigation Current Programme, Indian Space Research Organization</ref><ref name=" futProg">Forth Future Programme, Indian Space Research Organization</ref><ref name="Ariane5"/>: </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-8: Launched in March 2011.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-8: Launched in March 2011.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-10: Launched in April 2012.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-10: Launched in April 2012.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Ground segment''': On the ground, the GPS data is received and processed in the 15 (of the up to 45 it can support <ref name="GAGAN FAQ">[http://gagan.aai.aero/gagan/content/faq-0 GAGAN FAQ]</ref>) Indian Reference Stations (INRES), located at Ahmedabad, Bangalore, Bhubaneswar, Kolkata, Delhi, Dibrugarh, Gaya, Goa, Guwahati, Jaisalmer, Jammu, Nagpur, Porbandar, Port Blair, Trivandrum. The Indian Master Control Center (INMCC) composed by two operational sites located in Bangalore and Delhi, processes the data from the INRESs to compute the differential corrections and the estimate of its level of integrity. The SBAS message generated by the two INMCC is uplinked to the GEO satellites through its corresponding Indian Land Uplink Station (INLUS)<ref name="GAGAN_RESULTS">[http://www.icao.int/APAC/Meetings/2012_ISTF_1/IP02_India%20AI.4%20-%20Presentation.ppt C.L.Indi (GAGAN), Surendra Sunda (GAGAN), Airports Authority of India, "GAGAN - Ionospheric data collection and analysis over Indian region - Recent results", First Meeting of ionospheric Studies Task Force (ISTF/1) 27th -29th Feb 2012]</ref><ref name="GAGAN RSA"/>.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*'''Ground segment''': On the ground, the GPS data is received and processed in the 15 (of the up to 45 it can support <ref name="GAGAN FAQ">[http://gagan.aai.aero/gagan/content/faq-0 GAGAN FAQ]</ref>) Indian Reference Stations (INRES), located at Ahmedabad, Bangalore, Bhubaneswar, Kolkata, Delhi, Dibrugarh, Gaya, Goa, Guwahati, Jaisalmer, Jammu, Nagpur, Porbandar, Port Blair, Trivandrum. The Indian Master Control Center (INMCC) composed by two operational sites located in Bangalore and Delhi, processes the data from the INRESs to compute the differential corrections and the estimate of its level of integrity. The SBAS message generated by the two INMCC is uplinked to the GEO satellites through its corresponding Indian Land Uplink Station (INLUS)<ref name="GAGAN_RESULTS">[http://www.icao.int/APAC/Meetings/2012_ISTF_1/IP02_India%20AI.4%20-%20Presentation.ppt C.L.Indi (GAGAN), Surendra Sunda (GAGAN), Airports Authority of India, "GAGAN - Ionospheric data collection and analysis over Indian region - Recent results", First Meeting of ionospheric Studies Task Force (ISTF/1) 27th -29th Feb 2012]</ref><ref name="GAGAN RSA"/>.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*User segment: GAGAN-enabled GPS receivers, with the same technology as [[WAAS Receivers]], capable to use the GAGAN Signal-in-Space (SIS). User equipment for civil aviation shall be certified against several standards (see article [[SBAS Standards]]).</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">'''</ins>User segment<ins style="font-weight: bold; text-decoration: none;">'''</ins>: GAGAN-enabled GPS receivers, with the same technology as [[WAAS Receivers]], capable to use the GAGAN Signal-in-Space (SIS). User equipment for civil aviation shall be certified against several standards (see article [[SBAS Standards]]).</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The company Raytheon was awarded in 2009 with the contract to modernize the Indian air navigation system. Raytheon was responsible for building the Ground Stations being supplied by some ground equipment by ISRO.<ref>[https://insidegnss.com/isro-extends-raytheon-contract-for-gagan-gps-augmentation-system/ ''ISRO Extends Raytheon Contract for GAGAN GPS Augmentation System''] Inside GNSS News July 2009</ref></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The company Raytheon was awarded in 2009 with the contract to modernize the Indian air navigation system. Raytheon was responsible for building the Ground Stations being supplied by some ground equipment by ISRO.<ref>[https://insidegnss.com/isro-extends-raytheon-contract-for-gagan-gps-augmentation-system/ ''ISRO Extends Raytheon Contract for GAGAN GPS Augmentation System''] Inside GNSS News July 2009</ref></div></td></tr>
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Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=GAGAN&diff=15880&oldid=prev
Gema.Cueto: /* GAGAN Architecture */
2021-06-22T09:46:01Z
<p><span class="autocomment">GAGAN Architecture</span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:46, 22 June 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-15: Launched in November 2015.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>**GSAT-15: Launched in November 2015.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*Ground segment: On the ground, the GPS data is received and processed in the 15 (of the up to 45 it can support <ref name="GAGAN FAQ">[http://gagan.aai.aero/gagan/content/faq-0 GAGAN FAQ]</ref>) Indian Reference Stations (INRES), located at Ahmedabad, Bangalore, Bhubaneswar, Kolkata, Delhi, Dibrugarh, Gaya, Goa, Guwahati, Jaisalmer, Jammu, Nagpur, Porbandar, Port Blair, Trivandrum. The Indian Master Control Center (INMCC) composed by two operational sites located in Bangalore and Delhi, processes the data from the INRESs to compute the differential corrections and the estimate of its level of integrity. The SBAS message generated by the two INMCC is uplinked to the GEO satellites through its corresponding Indian Land Uplink Station (INLUS)<ref name="GAGAN_RESULTS">[http://www.icao.int/APAC/Meetings/2012_ISTF_1/IP02_India%20AI.4%20-%20Presentation.ppt C.L.Indi (GAGAN), Surendra Sunda (GAGAN), Airports Authority of India, "GAGAN - Ionospheric data collection and analysis over Indian region - Recent results", First Meeting of ionospheric Studies Task Force (ISTF/1) 27th -29th Feb 2012]</ref><ref name="GAGAN RSA"/>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">'''</ins>Ground segment<ins style="font-weight: bold; text-decoration: none;">'''</ins>: On the ground, the GPS data is received and processed in the 15 (of the up to 45 it can support <ref name="GAGAN FAQ">[http://gagan.aai.aero/gagan/content/faq-0 GAGAN FAQ]</ref>) Indian Reference Stations (INRES), located at Ahmedabad, Bangalore, Bhubaneswar, Kolkata, Delhi, Dibrugarh, Gaya, Goa, Guwahati, Jaisalmer, Jammu, Nagpur, Porbandar, Port Blair, Trivandrum. The Indian Master Control Center (INMCC) composed by two operational sites located in Bangalore and Delhi, processes the data from the INRESs to compute the differential corrections and the estimate of its level of integrity. The SBAS message generated by the two INMCC is uplinked to the GEO satellites through its corresponding Indian Land Uplink Station (INLUS)<ref name="GAGAN_RESULTS">[http://www.icao.int/APAC/Meetings/2012_ISTF_1/IP02_India%20AI.4%20-%20Presentation.ppt C.L.Indi (GAGAN), Surendra Sunda (GAGAN), Airports Authority of India, "GAGAN - Ionospheric data collection and analysis over Indian region - Recent results", First Meeting of ionospheric Studies Task Force (ISTF/1) 27th -29th Feb 2012]</ref><ref name="GAGAN RSA"/>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*User segment: GAGAN-enabled GPS receivers, with the same technology as [[WAAS Receivers]], capable to use the GAGAN Signal-in-Space (SIS). User equipment for civil aviation shall be certified against several standards (see article [[SBAS Standards]]).</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*User segment: GAGAN-enabled GPS receivers, with the same technology as [[WAAS Receivers]], capable to use the GAGAN Signal-in-Space (SIS). User equipment for civil aviation shall be certified against several standards (see article [[SBAS Standards]]).</div></td></tr>
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Gema.Cueto