Performance assessment of IGS Combined/JPL individual rapid and ultra-rapid products: consideration of precise point positioning technique

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dc.contributor.authorOgutcu, Sermet
dc.date.accessioned2024-02-23T14:34:21Z
dc.date.available2024-02-23T14:34:21Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractSatellite orbit and clock products are the key elements for precise point positioning (PPP). Contrary to the relative technique, errors in satellite orbit and clock directly lump to the station coordinates for PPP technique. Currently final, rapid and ultra-rapid (observed-half and predicted-half) satellite products have been made freely available over the internet mainly for Global Positioning Service (GPS) satellites. Final and rapid products are used for post-processing applications. For real-time and near real-time applications, ultra-rapid products with predicted and observed parts can be used. There are several analysis centers that provide the satellite orbit and clock products. In this paper, accuracy and precision of GPS rapid and ultra-rapid satellite orbit and clock products from two services, International Global Navigation Satellite Service (IGS) and Jet Propulsion Laboratory (JPL), were investigated in the position domain of PPP technique while the final products of these services were taken as the true value. Ten IGS stations around the world were chosen for PPP processes. 24-12-8-4-2 hours of non-overlapping arc-lengths of GPS observations in 31 consecutive days (DOY 1-31 of 2018) were processed for each station. The results confirm that the shorter the arc-lengths, the larger the relative error of rapid and ultra-rapid products due to the similar Gaussian distribution pattern of the orbit errors with respect to the final products. In terms of consistency between the products, Root-Mean-Square-Errors (RMSE) of final-rapid differences of IGS and JPL are at the millimeter level. Millimeter level accuracy can be obtained using rapid and ultra-rapid products for JPL whereas only rapid products of IGS maintain millimeter accuracy with respect to the final products.en_US
dc.identifier.doi10.26833/ijeg.577385
dc.identifier.endpage14en_US
dc.identifier.issn2548-0960
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85098492633en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://doi.org/10.26833/ijeg.577385
dc.identifier.urihttps://hdl.handle.net/20.500.12452/15551
dc.identifier.volume5en_US
dc.identifier.wosWOS:000487562400001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSelcuk Univ Pressen_US
dc.relation.ispartofInternational Journal Of Engineering And Geosciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFinal Orbits And Clocksen_US
dc.subjectGpsen_US
dc.subjectIgsen_US
dc.subjectJplen_US
dc.subjectRapid And Ultra-Rapid Productsen_US
dc.titlePerformance assessment of IGS Combined/JPL individual rapid and ultra-rapid products: consideration of precise point positioning techniqueen_US
dc.typeArticleen_US

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