A method for re-entry prediction of an uncontrolled artificial space object, the method including: calculating an average semi-major axis and an argument of latitude by inputting two-line elements or osculating elements of an artificial space object at two different time points; calculating an average semi-major axis, argument of latitude, and atmospheric drag at a second time point; estimating an optimum drag scale factor while changing the drag scale factor; predicting the time and place of re-entry of an artificial space object into the atmosphere by applying the estimated drag scale factor. Here, orbit prediction is performed by using a Cowell's high-precision orbital propagator using numerical integration from the second time point to a re-entry time point.
METHOD FOR RE-ENTRY PREDICTION OF UNCONTROLLED ARTIFICIAL SPACE OBJECT
2019-12-12
Patent
Electronic Resource
English
METHOD FOR RE-ENTRY PREDICTION OF UNCONTROLLED ARTIFICIAL SPACE OBJECT
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