Satellite Orbit and Ephemeris Determination using Inter Satellite Links

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Autonomous Onboard ProcessingInter Satellite Linkslimit). The maximum range error has been 1.8 meter (0.8 meter above the limit), but the errorin the user position has been negligible (see figure below).0,4NorthEastUp0,2Error [m]0,0-0,2-0,4-0,612:01:49.000 12:02:39.000 12:03:29.000Time[hour:min:sec]Figure 7-14 User Error during Manoeuvre7.4.3.2 Weak Orbit ManoeuvreIn the next simulation, a weak thrust of 2N results in a velocity increment of 0.1 m/s in thecross track direction. Affected satellite is again SV 26. The next two figure show again trueand estimated versus true error of the satellites onboard processor.Page 178R. Wolf
Inter Satellite LinksAutonomous Onboard Processing0,50,0-0,5XYZTError [m]-1,0-1,5-2,0-2,512:02:19.000 12:03:39.000 12:04:59.000Time [hour:min:sec]Figure 7-15 Absolute Error SV 260,6dXdYdZdT0,40,2Error [m]0,0-0,2-0,412:02:19.000 12:03:39.000 12:04:59.000Time [hour:min:sec]Figure 7-16 Estimated vs True Error SV 26The error log below indicates the sequence of events and messages.1998 07 01 12:03:42.000 SV 26 Ramp Detected [Position]1998 07 01 12:03:43.000 SV 26 Ramp Detected [Position]R. Wolf Page 179
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Satellite Orbit and EphemerisDeterm
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Inter Satellite LinksAbstractGlobal
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Inter Satellite LinksTable of Conte
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Inter Satellite Links6.2.2 IGSO WAL
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Inter Satellite LinksList of Figure
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Inter Satellite LinksFigure 6-38 Tr
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Inter Satellite LinksList of Tables
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Inter Satellite LinksJ2Earths Oblat
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Inter Satellite LinksIntroduction1
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Inter Satellite LinksIntroductionGE
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Inter Satellite LinksISL Observatio
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Inter Satellite LinksState Estimati
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State EstimationInter Satellite Lin
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Orbit ComputationInter Satellite Li
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Software DescriptionInter Satellite
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Simulations and ResultsInter Satell
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Satellite Orbit and Ephemeris Determination using Inter Satellite Links

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