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Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite
The LARES (LAser RElativity Satellite) was built by the Italian Space Agency (ASI) and launched on 13 February 2012 by the European Space Agency. It is intended for studying the Lense–Thirring effect resulting from general relativity as well as for geodynamic studies and satellite geodesy. The satel...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865337/ https://www.ncbi.nlm.nih.gov/pubmed/33498598 http://dx.doi.org/10.3390/s21030737 |
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author | Schillak, Stanisław Lejba, Paweł Michałek, Piotr |
author_facet | Schillak, Stanisław Lejba, Paweł Michałek, Piotr |
author_sort | Schillak, Stanisław |
collection | PubMed |
description | The LARES (LAser RElativity Satellite) was built by the Italian Space Agency (ASI) and launched on 13 February 2012 by the European Space Agency. It is intended for studying the Lense–Thirring effect resulting from general relativity as well as for geodynamic studies and satellite geodesy. The satellite is observed by most ground laser stations. The task of this work is to determine the station coordinates and to assess the quality of their determination by comparison with the results from the LAGEOS-1 and LAGEOS-2 satellites. Observation results in the form of normal points (396,105 normal points in total) were downloaded from the EUROLAS Data Center for the period from 29 February 2012 to 31 December 2015. Seven-day orbital arcs were computed by the NASA GSFC GEODYN-II software, determining the coordinates of seventeen selected measuring stations. The average Root Mean Square (RMS) (15.1 mm) of the determined orbits is nearly the same as for LAGEOS (15.2 mm). The stability of the coordinates of each station (3DRMS) is from 9 mm to 46 mm (for LAGEOS, from 5 mm to 15 mm) with the uncertainty of determining the coordinates of 3–11 mm (LAGEOS 2–7 mm). The combined positioning for the LARES + LAGEOS-1 + LAGEOS-2 satellites allows for the stability of 5–18 mm with an uncertainty of 2–6 mm. For most stations, this solution is slightly better than the LAGEOS-only one. |
format | Online Article Text |
id | pubmed-7865337 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-78653372021-02-07 Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite Schillak, Stanisław Lejba, Paweł Michałek, Piotr Sensors (Basel) Article The LARES (LAser RElativity Satellite) was built by the Italian Space Agency (ASI) and launched on 13 February 2012 by the European Space Agency. It is intended for studying the Lense–Thirring effect resulting from general relativity as well as for geodynamic studies and satellite geodesy. The satellite is observed by most ground laser stations. The task of this work is to determine the station coordinates and to assess the quality of their determination by comparison with the results from the LAGEOS-1 and LAGEOS-2 satellites. Observation results in the form of normal points (396,105 normal points in total) were downloaded from the EUROLAS Data Center for the period from 29 February 2012 to 31 December 2015. Seven-day orbital arcs were computed by the NASA GSFC GEODYN-II software, determining the coordinates of seventeen selected measuring stations. The average Root Mean Square (RMS) (15.1 mm) of the determined orbits is nearly the same as for LAGEOS (15.2 mm). The stability of the coordinates of each station (3DRMS) is from 9 mm to 46 mm (for LAGEOS, from 5 mm to 15 mm) with the uncertainty of determining the coordinates of 3–11 mm (LAGEOS 2–7 mm). The combined positioning for the LARES + LAGEOS-1 + LAGEOS-2 satellites allows for the stability of 5–18 mm with an uncertainty of 2–6 mm. For most stations, this solution is slightly better than the LAGEOS-only one. MDPI 2021-01-23 /pmc/articles/PMC7865337/ /pubmed/33498598 http://dx.doi.org/10.3390/s21030737 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Schillak, Stanisław Lejba, Paweł Michałek, Piotr Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title | Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title_full | Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title_fullStr | Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title_full_unstemmed | Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title_short | Analysis of the Quality of SLR Station Coordinates Determined from Laser Ranging to the LARES Satellite |
title_sort | analysis of the quality of slr station coordinates determined from laser ranging to the lares satellite |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865337/ https://www.ncbi.nlm.nih.gov/pubmed/33498598 http://dx.doi.org/10.3390/s21030737 |
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