Singularities in DROMO formulation. Analysis of deep flybys

Roa, Javier, Sanjurjo Rivo, Manuel and Pélaez Álvarez, Jesús ORCID: (2015). Singularities in DROMO formulation. Analysis of deep flybys. "Advances in Space Research", v. 56 (n. 3); pp. 569-581. ISSN 0273-1177.


Title: Singularities in DROMO formulation. Analysis of deep flybys
Item Type: Article
Título de Revista/Publicación: Advances in Space Research
Date: 1 August 2015
ISSN: 0273-1177
Volume: 56
Freetext Keywords: Numerical methods; Orbit propagation; Flyby trajectories; Dromo
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a las Ingenierías Aeronáutica y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[thumbnail of INVE_MEM_2015_188759.pdf]
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview


The singularities in Dromo are characterized in this paper, both from an analytical and a numerical perspective. When the angular momentum vanishes, Dromo may encounter a singularity in the evolution equations. The cancellation of the angular momentum occurs in very speci?c situations and may be caused by the action of strong perturbations. The gravitational attraction of a perturbing planet may lead to rapid changes in the angular momentum of the particle. In practice, this situation may be encountered during deep planetocentric ?ybys. The performance of Dromo is evaluated in di?erent scenarios. First, Dromo is validated for integrating the orbit of Near Earth Asteroids. Resulting errors are of the order of the diameter of the asteroid. Second, a set of theoretical ?ybys are designed for analyzing the performance of the formulation in the vicinity of the singularity. New sets of Dromo variables are proposed in order to minimize the dependency of Dromo on the angular momentum. A slower time scale is introduced, leading to a more stable description of the ?yby phase. Improvements in the overall performance of the algorithm are observed when integrating orbits close to the singularity.

Funding Projects

Government of Spain
Análisis dinámico, propagación orbital avanzada y simulación de sistemas espaciales complejos

More information

Item ID: 36393
DC Identifier:
OAI Identifier:
DOI: 10.1016/j.asr.2015.03.019
Official URL:
Deposited by: Memoria Investigacion
Deposited on: 13 Jul 2015 15:31
Last Modified: 31 May 2019 15:57
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM