130672 20240130150402.0 doi 10.1016/j.actaastro.2019.09.039 sideral 114725 ART-2020-114725 eng Lacruz, Elvis Estimation of a reliability range for the area-to-mass ratio of orbiters at the geostationary ring 2020 This paper shows the precise relative motion of different orbiters located at the geostationary region thanks to high precision astrometric coordinates, which are calculated thanks to different accurate observations taken from the Venezuelan National Observatory. These orbiters are close to each-other and present different relative motions although the magnitude of the distribution forces that act over them is the same. Thus, these orbiters must posses other intrinsic physic parameters which provokes the different observed morphological dynamic. In particular, the area-to-mass ratio could be one of them, and consequently, the main goal of this paper is to determine a reliability range for the area-to-mass ratio, that justifies the relative motion of these objects. Since a complete relative motion of the orbit is not feasible, we use realistic models to simulate the real motion of these orbiters, and we associate them an invented value for the area-to-mass ratio. Then, we use an analytical reduced model to compute the evolution of the eccentricity, considering different values for the area-to-mass ratio. Consequently, we are able to recover a reliability range for this invented parameter. In this work, it is also possible to consider the real ephemerides of objects listed in the CelesTrack database, and estimate its corresponding value for the area-to-mass ratio. Thus, this paper provides an innovative way to obtain a physical property of a space object just by observational information. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.413 2020 ENGINEERING, AEROSPACE 6 / 34 = 0.176 2020 Q1 T1 1.133 2020 Aerospace Engineering 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Casanova, Daniel (orcid)0000-0002-7620-4523 Abad, Alberto Universidad de Zaragoza (orcid)0000-0002-5692-5876 2004 398 Universidad de Zaragoza Dpto. Física Teórica Área Física de la Tierra 166 (2020), 104-112 Acta astronaut. Acta Astronautica 0094-5765 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073231807&doi=10.1016%2fj.actaastro.2019.09.039&partnerID=40&md5=7e712e37edba3f606be9e3e47d81a555 Texto completo de la revista 1910614 http://zaguan.unizar.es/record/130672/files/texto_completo.pdf Postprint 3088789 http://zaguan.unizar.es/record/130672/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130672 articulos driver 2024-01-30-14:06:41 ARTICLE