130453 20260227124019.0 doi 10.1016/j.actaastro.2020.09.010 sideral 120286 ART-2021-120286 eng Arnas, D. (orcid)0000-0002-8507-4679 2D Necklace Flower Constellations applied to Earth observation missions 2021 Access copy available to the general public Unrestricted This work focuses on the nominal design and later maintenance of satellite constellations based on the 2D Necklace Flower Constellations for their application in Earth observation missions. To that end, we introduce a generalization of the 2D Necklace Flower Constellations formulation to adapt the methodology to constellations whose satellites have different mission requirements, while still allowing to reduce the searching space in satellite constellation design. Moreover, this design is combined with its dual distribution in the Earth Centered–Earth Fixed reference frame to obtain additional information about the dynamic of the system, including the sub-satellite point revisiting time, or the relative to Earth distribution. This is used to optimize the constellation in terms of maximum uniformity of the distribution with respect to the Earth. Finally, a detailed example of application of this design methodology is presented, where a constellation based on satellites with different mission requirements is considered. info:eu-repo/grantAgreement/ES/DGA-FSE/E24-17R info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/ESP2017-87113-R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 2.954 2021 ENGINEERING, AEROSPACE 6 / 34 = 0.176 2021 Q1 T1 1.0 2021 Aerospace Engineering 2021 Q1 5.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion Casanova, D. (orcid)0000-0002-7620-4523 Tresaco, E. (orcid)0000-0003-4859-7224 178 (2021), 203-215 Acta astronaut. Acta Astronautica 0094-5765 968759 http://zaguan.unizar.es/record/130453/files/texto_completo.pdf Preprint 1055794 http://zaguan.unizar.es/record/130453/files/texto_completo.jpg?subformat=icon icon Preprint oai:zaguan.unizar.es:130453 articulos driver 2026-02-27-12:39:21 ARTICLE