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Improving Reentry Prediction Capabil...

Watkins, Paul,

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Improving Reentry Prediction Capability of Naturally Decaying Space Objects /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Improving Reentry Prediction Capability of Naturally Decaying Space Objects // Paul Watkins.
作者:	Watkins, Paul,
面頁冊數:	1 electronic resource (60 pages)
附註:	Source: Masters Abstracts International, Volume: 85-11.
Contained By:	Masters Abstracts International85-11.
標題:	Mechanical engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31242328
ISBN:	9798382332994

Improving Reentry Prediction Capability of Naturally Decaying Space Objects /
Watkins, Paul,

Improving Reentry Prediction Capability of Naturally Decaying Space Objects /Paul Watkins. - 1 electronic resource (60 pages)

Source: Masters Abstracts International, Volume: 85-11.

This paper investigates the utility of GPS transponders in providing an increased predictive capability to reentry times of naturally decaying space objects. It compares the predictions of traditional propagators, such as SGP4 and HPOP models, to that of simulated GPS data for reconstructed orbits of several decayed objects. By screening the public catalog of two line element sets (TLEs) for upcoming reentry dates over a long period of time, several objects are selected to undergo analyses to determine the accuracy of traditional methodologies in natural decay reentry predictions. Since the true trajectory of an object is impossible to obtain, a proxy for truth data is created using the time history of TLEs for each object to reconstruct a best-fit trajectory for the final days prior to reentry. From these trajectories, GPS points are simulated in a real-time flow of data at a regular cadence, which are used as another data source for reentry predictions of each satellite. All data sources are measured against the final Tracking and Impact Prediction (TIP) messages of the respective satellites, which are published by the United States Space Command and used as a proxy for truth data. It is of interest to determine the effectiveness of the time-consistent and low-uncertainty tracking measurements offered by GPS transponders.

English

ISBN: 9798382332994Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Astrodynamics

Improving Reentry Prediction Capability of Naturally Decaying Space Objects /
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