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EUROPEAN SPACE AGENCY EUROPEAN SPACE OPERATIONS CENTRE GROUND SYSTEMS ENGINEERING DEPARTMENT Mission Analysis Office
CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS
January 2005 4.7 Objects in a libration orbit around both stable pointsIn this list there are objects which were in a libration orbit around both stable points according to their last available TLEs. The following data are given:
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| L3.nn | COSPAR | NAME | Date | Plib | Δλ | λmin | λmax | Nly | Ntot | MJD | a | e | i | Ω | ω | λ |
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It is important to note that this category is special and only a very small number of objects is concerned. It is a borderline case, just between a libration around one stable point and a drift around the Earth. Thus, some perturbations which could be neglected in the other cases have a strong influence here. The main consequence is that this category is more sensitive to errors in the measurements than the others and the libration period may have a low accuracy.
EMPTY |
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