Satellite Orbit and Ephemeris Determination using Inter Satellite Links
Satellite Orbit and Ephemeris Determination using Inter Satellite Links
Satellite Orbit and Ephemeris Determination using Inter Satellite Links
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<strong>Inter</strong> <strong>Satellite</strong> <strong>Links</strong>Simulations <strong>and</strong> Results6.2.4 GEO / IGSO6.2.4.1 Ground TrackingIn this mixed constellation, the tracking accuracy of IGSO satellites are similar the previousconstellations. Only the GEOs have a slightly different tracking geometry. The st<strong>and</strong>arddeviations are very stable, <strong>and</strong> not subject to geometry variations, as can be seen in the figurebelow.Radial Error [cm] 1998 07 03 03:23 - 1998 07 09 09:2348.024.0Radial Std. Dev. [cm] 1998 07 03 03:23 - 1998 07 09 09:2332.0016.0-24.0-48.0[h]35 70 105 1400[h]34 68 102 136Along Track Error [cm] 1998 07 03 03:23 - 1998 07 09 09:2360.030.0Along Track Std. Dev. [cm] 1998 07 03 03:23 - 1998 07 09 09:2384.0042.0-30.0-60.0[h]35 70 105 1400[h]34 68 102 136Cross T rack Error [cm] 1998 07 03 03:23 - 1998 07 09 09:2320.010.0Cross Track Std. Dev. [cm] 1998 07 03 03:23 - 1998 07 09 09:23100.0050.0-10.0-20.0[h]35 70 105 1400[h]34 68 102 136Figure 6-24 Tracking Accuracy of GEO <strong>using</strong> Ground <strong>Links</strong> onlyR. Wolf Page 119
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