https://gssc.esa.int/navipedia/index.php?action=history&feed=atom&title=Satellite_Antenna_Phase_Centre
Satellite Antenna Phase Centre - Revision history
2026-09-16T03:06:12Z
Revision history for this page on the wiki
MediaWiki 1.43.1
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=16698&oldid=prev
Gema.Cueto at 09:52, 16 April 2026
2026-04-16T09:52:01Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:52, 16 April 2026</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>}}</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>}}</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>The broadcast ephemeris are referred to the satellite's antenna phase centre (of the [[Ionosphere-free Combination for Dual Frequency Receivers|ionosphere-free combination]] signal, see equation (6)) in a ECEF reference frame [DoD, USA, 1995]<ref> [DoD, USA, 1995] DoD, USA, 1995. Global Positioning System Standard Positioning Service Performance Standard. http://www.navcen.uscg.gov/pubs/gps/sigspec/gpssps1.pdf. </ref>, [GLONASS ICD, <del style="font-weight: bold; text-decoration: none;">2008</del>] <ref>[GLONASS ICD, <del style="font-weight: bold; text-decoration: none;">2008</del>] <del style="font-weight: bold; text-decoration: none;">GLONASS ICD, 2008. Technical report.5.1.</del></ref>, and, thence, no additional correction is needed when using the navigation message. Nevertheless, the precise orbits and clocks are referred to the satellite mass centre, being necessary to account for the phase centre offset vector. </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 broadcast ephemeris are referred to the satellite's antenna phase centre (of the [[Ionosphere-free Combination for Dual Frequency Receivers|ionosphere-free combination]] signal, see equation (6)) in a ECEF reference frame [DoD, USA, 1995]<ref> [DoD, USA, 1995] DoD, USA, 1995. Global Positioning System Standard Positioning Service Performance Standard. http://www.navcen.uscg.gov/pubs/gps/sigspec/gpssps1.pdf. </ref>, [GLONASS ICD, <ins style="font-weight: bold; text-decoration: none;">2020</ins>] <ref>[<ins style="font-weight: bold; text-decoration: none;">https://glonass-iac.ru/upload/docs/stehos/stehos_en.pdf </ins>GLONASS ICD, <ins style="font-weight: bold; text-decoration: none;">2020</ins>]</ref>, and, thence, no additional correction is needed when using the navigation message. Nevertheless, the precise orbits and clocks are referred to the satellite mass centre, being necessary to account for the phase centre offset vector. </div></td></tr>
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<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>:where the <math>{\mathbf r}_{_{sun}}</math> vector can be computed from the planetary ephemeris <ref group="footnotes">Simplified expressions for Solar and Lunar coordinates can be found, for instance, in [Montenbruck and Eberhard, 2005] or in GLONASS-ICD [GLONASS ICD, 1998].</ref><ref>[Montenbruck and Eberhard, 2005] Montenbruck, O. and Eberhard, G., 2005. Satellite Orbits. Models, methods, applications. Springer, Germany.</ref><ref>[GLONASS ICD, 1998] <del style="font-weight: bold; text-decoration: none;">GLONASS ICD, 1998. Technical report. v.4.0.</del></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>:where the <math>{\mathbf r}_{_{sun}}</math> vector can be computed from the planetary ephemeris <ref group="footnotes">Simplified expressions for Solar and Lunar coordinates can be found, for instance, in [Montenbruck and Eberhard, 2005] or in GLONASS-ICD [GLONASS ICD, 1998].</ref><ref>[Montenbruck and Eberhard, 2005] Montenbruck, O. and Eberhard, G., 2005. Satellite Orbits. Models, methods, applications. Springer, Germany.</ref><ref>[<ins style="font-weight: bold; text-decoration: none;">https://www.unavco.org/help/glossary/docs/ICD_GLONASS_4.0_(1998)_en.pdf </ins>GLONASS ICD, 1998]</ref>.</div></td></tr>
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Gema.Cueto
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=13067&oldid=prev
Filipe.Pelica: fixed broken link.
2014-09-08T17:06:02Z
<p>fixed broken link.</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:06, 8 September 2014</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;"><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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks can be found at the web site http://earth-info.nga.mil/GandG/sathtml/<del style="font-weight: bold; text-decoration: none;">gpsdoc2011_07a.html</del>, from the National Geospatial-Intelligence Agency (NGA). An example is given in following table 3.</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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks can be found at the web site http://earth-info.nga.mil/GandG/sathtml/, from the National Geospatial-Intelligence Agency (NGA). An example is given in following table 3.</div></td></tr>
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Filipe.Pelica
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=12156&oldid=prev
Jaume.Sanz at 10:07, 13 January 2013
2013-01-13T10:07:02Z
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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>::<math></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>::<math></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>{\mathbf R}=\left [</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>{\mathbf R}=\left [\hat{\mathbf i}\<ins style="font-weight: bold; text-decoration: none;">,\,</ins>\<ins style="font-weight: bold; text-decoration: none;">,</ins>\hat{\mathbf j}\<ins style="font-weight: bold; text-decoration: none;">,</ins>\<ins style="font-weight: bold; text-decoration: none;">,\,</ins>\hat{\mathbf k}</div></td></tr>
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<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>\hat{\mathbf i}<del style="font-weight: bold; text-decoration: none;">^T</del>\\</div></td><td colspan="2" class="diff-side-added"></td></tr>
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<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><del style="font-weight: bold; text-decoration: none;">\end{array</del>}</div></td><td colspan="2" class="diff-side-added"></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>\right ] \qquad\mbox{(5)}</math></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>\right ] \qquad\mbox{(5)}</math></div></td></tr>
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Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=11648&oldid=prev
Carlos.Lopez at 11:41, 23 February 2012
2012-02-23T11:41:18Z
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Carlos.Lopez
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10928&oldid=prev
Jaume.Sanz at 10:41, 1 February 2012
2012-02-01T10:41:18Z
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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>::{|</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>::{|</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>|+align="bottom"|''Figure 2: Satellite Antenna Phase Centre: Range and position domain effect<del style="font-weight: bold; text-decoration: none;">'</del>.<del style="font-weight: bold; text-decoration: none;">'</del></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>|+align="bottom"|''Figure 2: Satellite Antenna Phase Centre: Range and position domain effect.</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>| [[File:SV_APC_ Ex2d2.png|none|thumb|400px|frameless]]</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:SV_APC_ Ex2d2.png|none|thumb|400px|frameless]]</div></td></tr>
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</table>
Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10923&oldid=prev
Jaume.Sanz at 12:14, 31 January 2012
2012-01-31T12:14:28Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:14, 31 January 2012</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>::{|</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>::{|</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>|+align="bottom"|''Figure 2: <del style="font-weight: bold; text-decoration: none;">Ionospheric correction</del>: Range and position domain effect'.'</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>|+align="bottom"|''Figure 2: <ins style="font-weight: bold; text-decoration: none;">Satellite Antenna Phase Centre</ins>: Range and position domain effect'.'</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>| [[File:SV_APC_ Ex2d2.png|none|thumb|400px|frameless]]</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:SV_APC_ Ex2d2.png|none|thumb|400px|frameless]]</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>| [[File:SV_APC_ Ex2d3.png |none|thumb|400px|frameless]]</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:SV_APC_ Ex2d3.png |none|thumb|400px|frameless]]</div></td></tr>
</table>
Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10922&oldid=prev
Jaume.Sanz at 12:05, 31 January 2012
2012-01-31T12:05:12Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:05, 31 January 2012</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;"><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;"><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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks can be found at the web site http://earth-info.nga.mil/GandG/sathtml/<del style="font-weight: bold; text-decoration: none;">gpsdoc2009_10a</del>.html, from the National Geospatial-Intelligence Agency (NGA). An example is given in following table 3.</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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks can be found at the web site http://earth-info.nga.mil/GandG/sathtml/<ins style="font-weight: bold; text-decoration: none;">gpsdoc2011_07a</ins>.html, from the National Geospatial-Intelligence Agency (NGA). An example is given in following table 3.</div></td></tr>
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</table>
Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10921&oldid=prev
Jaume.Sanz at 11:53, 31 January 2012
2012-01-31T11:53:42Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:53, 31 January 2012</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;"><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;"><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>From November 5th 2006 on, IGS uses different antenna phase centre vectors (<math>\boldsymbol \Delta_{_{APC}}</math>) even <del style="font-weight: bold; text-decoration: none;">withing </del>the same GPS satellite Block. These values are derived from an absolute calibration of the Antenna Phase Centre corrections (offset and PCVs, see [[Antenna Phase Centre]], for GPS and also for GLONASS satellites are provided in the mentioned IGS ANTEX files.</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>From November 5th 2006 on, IGS uses different antenna phase centre vectors (<math>\boldsymbol \Delta_{_{APC}}</math>) even <ins style="font-weight: bold; text-decoration: none;">within </ins>the same GPS satellite Block. These values are derived from an absolute calibration of the Antenna Phase Centre corrections (offset and PCVs, see [[Antenna Phase Centre]], for GPS and also for GLONASS satellites are provided in the mentioned IGS ANTEX files.</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>::[[File:SV_APC_ Table_2.png|none|thumb|400px|'''''Table 2:''''' Examples of <math>{\boldsymbol \Delta}_{APC_{LC}}</math> for GLONASS satellites.]]</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:SV_APC_ Table_2.png|none|thumb|400px|'''''Table 2:''''' Examples of <math>{\boldsymbol \Delta}_{APC_{LC}}</math> for GLONASS satellites.]]</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" 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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks <del style="font-weight: bold; text-decoration: none;">cab </del>be found at the web site http://earth-info.nga.mil/GandG/sathtml/<del style="font-weight: bold; text-decoration: none;">gpsdoc2009\_10a</del>.html, from the National <del style="font-weight: bold; text-decoration: none;">Geospatiac</del>-Intelligence Agency (NGA). An example is given in following table 3.</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 [[Antenna Phase Centre|Antenna Phase Centres]] associated to the GPS broadcast orbits and clocks <ins style="font-weight: bold; text-decoration: none;">can </ins>be found at the web site http://earth-info.nga.mil/GandG/sathtml/<ins style="font-weight: bold; text-decoration: none;">gpsdoc2009_10a</ins>.html, from the National <ins style="font-weight: bold; text-decoration: none;">Geospatial</ins>-Intelligence Agency (NGA). An example is given in following table 3.</div></td></tr>
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</table>
Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10920&oldid=prev
Jaume.Sanz at 11:43, 31 January 2012
2012-01-31T11:43:49Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:43, 31 January 2012</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;"><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>Notice that the antenna phase centres (<math>{\boldsymbol \Delta}_{APC_{L1}}</math>, <math>{\boldsymbol \Delta}_{APC_{L2}}</math>) are frequency dependent as it is shown in </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>Notice that the antenna phase centres (<math>{\boldsymbol \Delta}_{APC_{L1}}</math>, <math>{\boldsymbol \Delta}_{APC_{L2}}</math>) are frequency dependent as it is shown in <ins style="font-weight: bold; text-decoration: none;">Figure 1.</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;"><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>::[[File:Rx_APC_ STAOFF.png|none|thumb|520px|'''''Figure 1:''''' Layout of a permanent receiver site with indication of the Monument Marker, Antenna Reference Point and Antenna Phase Centre.]]</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:Rx_APC_ STAOFF.png|none|thumb|520px|'''''Figure 1:''''' Layout of a permanent receiver site with indication of the Monument Marker, Antenna Reference Point and Antenna Phase Centre.]]</div></td></tr>
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Jaume.Sanz
https://gssc.esa.int/navipedia/index.php?title=Satellite_Antenna_Phase_Centre&diff=10919&oldid=prev
Jaume.Sanz at 11:42, 31 January 2012
2012-01-31T11:42:03Z
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Jaume.Sanz