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Title: Long and short-term changes of Keplerian elements and correction coefficients of GPS satellites
Authors: Maciuk, Kamil
Keywords: Ephemeris;GPS;Keplerian orbital elements;Orbit;Orbital elements
Issue Date: Mar-2020
Publisher: NISCAIR-CSIR, India
Abstract: In satellite geodesy, the motion of artificial satellites has a crucial importance and the satellite’s position is the core point in the geodetic network. The simplicity of the broadcast ephemeris model directly determines the rate and efficiency of real-time navigation and positioning. GNSS broadcast message is transmitted in ECEF system either (GLONASS) or are Keplerian-like orbital elements (GPS, BeiDou, Galileo). The main aim of this paper is to describe the magnitude of Keplerian elements and correction coefficients of the navigational satellite changes based on a GPS satellite. The author examines six Keplerian elements and six correction coefficients for three different intervals: 2-hour, 1-day and 5-day intervals for periods of 9 days, a year and 10 years respectively. The analysis shows the varying behaviour of the time-series of the analysed components on the basis of the on-board GPS message, both random-like and repetitive (seasonal) trajectory time series.
Page(s): 413-418
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.49(03) [March 2020]

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