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Tutorials 4.0 Orbits - Historique des versions
2026-04-04T09:42:26Z
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Admin : Admin a déplacé la page OrbitsTutorials vers Tutorials 4.0 Orbits sans laisser de redirection
2018-03-27T14:03:56Z
<p>Admin a déplacé la page <a href="/index.php?title=OrbitsTutorials&action=edit&redlink=1" class="new" title="OrbitsTutorials (page inexistante)">OrbitsTutorials</a> vers <a href="/index.php/Tutorials_4.0_Orbits" title="Tutorials 4.0 Orbits">Tutorials 4.0 Orbits</a> sans laisser de redirection</p>
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Admin le 14 mars 2018 à 12:47
2018-03-14T12:47:10Z
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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>'''Code example:''' [[ParametersConversions|orbital parameters conversions]]</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>'''Code example:''' [[ParametersConversions|orbital parameters conversions]]</div></td></tr>
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Admin le 15 février 2018 à 12:45
2018-02-15T12:45:18Z
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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>'''Code example:''' [[ParametersConversions|orbital parameters conversions]]</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>'''Code example:''' [[ParametersConversions|orbital parameters conversions]]</div></td></tr>
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Admin : Page créée avec « == What is an orbit ? == An orbit is defined with a <font color=#FF0000>date</font>, a <font color=#FF0000>frame</font> then <font color=#FF0000>orbital parameters</font>... »
2018-02-13T10:04:54Z
<p>Page créée avec « == What is an orbit ? == An orbit is defined with a <font color=#FF0000>date</font>, a <font color=#FF0000>frame</font> then <font color=#FF0000>orbital parameters</font>... »</p>
<p><b>Nouvelle page</b></p><div>== What is an orbit ? ==<br />
<br />
An orbit is defined with a <font color=#FF0000>date</font>, a <font color=#FF0000>frame</font> then <font color=#FF0000>orbital parameters</font>; in the example below, we will use keplerian parameters ...<br />
* semi major axis<br />
* eccentricity<br />
* inclination<br />
* perigee argument<br />
* right ascension of the ascending node<br />
* anomaly (mean, true, eccentric)<br />
<br />
Note that it is mandatory to set the "Mu" value (gravitational constant) for both reasons :<br />
# to be able to convert keplerian parameters to cartesian ones<br />
# to propagate this orbit using the keplerian motion (considering only the central term) (for more sophisticated propagations (analytical or numerical ones) see specific tutorials).<br />
<br />
'''Code example:''' [[CreateKeplerianOrbit|create a Keplerian orbit]]<br />
<br />
== Orbital parameters ==<br />
<br />
Rather than to set directly orbital parameters when creating an orbit (see previous tutorial), it is possible to go through an intermediate object including these orbital parameters.<br />
<br />
Then to create an orbit, we will have to set the <font color=#FF0000>date</font>, the <font color=#FF0000>frame</font> ... and this object.<br />
<br />
Moreover, the advantage of this sublevel is to treat parameters conversions without considering a whole orbit (for example, to convert <font color=#FF0000>keplerian</font> parameters in <font color=#FF0000>cartesian</font> ones, it is not necessary to use a <font color=#FF0000>date</font> or a <font color=#FF0000>frame</font>).<br />
<br />
'''Code example:''' [[CreateKeplerianOrbitUsingParameters|create a Keplerian orbit using parameters]]<br />
<br />
== Orbital parameters conversions ==<br />
<br />
As explained in the previous tutorial, it is possible to make a lot of conversion between different orbital parameters formats. The following code gives some examples ...<br />
<br />
'''Code example:''' [[ParametersConversions|orbital parameters conversions]]</div>
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