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Allan Kardec de Almeida Junior. Received his PdH degree in Aerospace Engineering in 2018 from the National Institute for Space Research (INPE), master degree in Applied Physics in 2014 from São Paulo State University, and his bachelor degree in Physics 2012 from São Paulo State University. He is currently an investigator affiliated to CICGE, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal. Allan published more than 20 paper in specialized journals. He works in the area of Aerospace Engineering. He is currently investigating astrodynamics applications of the Theory of Functional Connections. The most frenquent terms of his scientific and technological productions are Astrodynamics; Equilibrium points; Nonlinear systems; Restricted three-body problem; Artificial equilibrium point; Solar sail.
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Identification

Personal identification

Full name
Allan Kardec de Almeida Junior

Citation names

  • de Almeida Jr, Allan K.

Author identifiers

Ciência ID
6C1D-8B07-6C3A
ORCID iD
0000-0002-9488-4462

Email addresses

  • fenixcinza@yahoo.com.br (Professional)
  • allan.junior@inpe.br (Professional)

Websites

Knowledge fields

  • Engineering and Technology - Mechanical Engineering - Aerospace Engineering

Languages

Language Speaking Reading Writing Listening Peer-review
Portuguese (Mother tongue)
English Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2)
Education
Degree Classification
2015 - 2018
Concluded
 Aerospace Engineering (Doctor)
Instituto Nacional de Pesquisas Espaciais, Brazil
"INFLUENCE OF PERTURBATIVE FORCES IN THE MOTION OF SPACECRAFT: AROUND ARTIFICIAL EQUILIBRIUM POINTS AND IN MEASUREMENTS OF INDICES" (THESIS/DISSERTATION)
2012 - 2014
Concluded
 Applied Physics (Master)
Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
"CONTROLE DE DISSOCIAÇÃO MOLECULAR COM FERRAMENTAS DE DINÂMICA NÃO LINEAR" (THESIS/DISSERTATION)
2009 - 2012
Concluded
 Physics (Bachelor)
Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
Affiliation

Science

Category
Host institution 		Employer
2023/12/01 - Current Researcher (Research) Universidade do Porto Centro de Investigação em Ciências Geo-Espaciais, Portugal
2023/11/02 - 2024/02/02 Contracted Researcher (Research) Universidade da Beira Interior Centro da Ciências e Tecnologias Mecânicas e Aeroespaciais, Portugal
2022/09 - 2023/06/30 Contracted Researcher (Research) Instituto de Telecomunicações, Portugal
Instituto de Telecomunicações, Portugal
2021/01/01 - 2022/09 Postdoc (Research) Instituto Nacional de Pesquisas Espaciais, Brazil
Instituto Nacional de Pesquisas Espaciais, Brazil
2020/01/01 - 2020/12/31 Visiting Researcher (Research) Texas A&M University, United States
Texas A&M University Department of Aerospace Engineering, United States
2018/09/14 - 2019/12/31 Postdoc (Research) Instituto Nacional de Pesquisas Espaciais, Brazil
Instituto Nacional de Pesquisas Espaciais, Brazil
Outputs

Publications

Conference paper
  1. Domingos Barbosa; Bruno Coelho; Miguel Bergano; Constança Alves; Alexandre C. M. Correia; Luís Cupido; José Freitas; et al. "PASO -- Astronomy and Space Situational Awareness in a Dark Sky Destination". 2024.
    10.48550/ARXIV.2404.04090
  2. de Almeida Junior, A.K.; Johnston, H.; Leake, C.; Mortari, D.. "Evaluation Of Transfer Costs In The Earth-Moon System Using The Theory Of Functional Connections". Paper presented in AAS/AIAA Astrodynamics Specialist Conference, 2020, Lake Tahoe, CA. Advances in the Astronautical Sciences, 2021.
    Published
  3. de Almeida Jr, Allan K.; Prado, Antonio Fernando Bertachini de Almeida. "A comparison of the restricted three-body problem and the bi-circular bi-planar four body problem". Paper presented in 2021 AAS/AIAA Astrodynamics Specialist Conference Big Sky Virtua, 2021, Big Sky. AAS Advances in the Astronautical Sciences, 2021.
    Published
  4. Martins Nascimento, J.; de Almeida Jr, Allan K.; Prado, A.F.B.A.. "Multi-tethered maneuvers to change the inclination of the orbit of a spacecraft". 2018.
  5. Couto Oliveira, G.M.; de Almeida Jr, Allan K.; De Almeida Prado, A.F.B.. "Determining locations and transfers of artificial equilibrium points in a double asteroid system". 2018.
  6. Nascimento, J.M.; De Almeida, A.K.; Prado, A.F.B.A.. "Applications of a tether fixed in the moon to maneuver spacecrafts". 2017.
Journal article
  1. A.K. Almeida Jr.; T. Vaillant; L.B.T. Santos; D. Maia. "Low-thrust transfer with Theory of Functional Connections: application to 243 Ida with a solar sail". Advances in Space Research (2024): http://dx.doi.org/10.1016/j.asr.2024.09.069.
    10.1016/j.asr.2024.09.069
  2. de Almeida Jr, Allan K.; T. Vaillant; V. M. de Oliveira; D. Barbosa; D. Maia; S. Aljbaae; B. Coelho; et al. Corresponding author: de Almeida Jr, Allan K.. "Tangential velocity constraint for orbital maneuvers with Theory of Functional Connections". Scientific Reports (2024): http://dx.doi.org/10.1038/s41598-024-57986-z.
    10.1038/s41598-024-57986-z
  3. de Almeida, Allan K.; Aljbaae, Safwan; Vaillant, Timothée; Piñeros, Jhonathan M.; Coelho, Bruno; Barbosa, Domingos; Bergano, Miguel; et al. "Theory of Functional Connections and Nelder–Mead optimization methods applied in satellite characterization". Acta Astronautica 215 (2024): 548-559. http://dx.doi.org/10.1016/j.actaastro.2023.12.033.
    10.1016/j.actaastro.2023.12.033
  4. Allan K. de Almeida; Antonio F. B. A. Prado; Daniele Mortari. "Orbit transfer using Theory of Functional Connections via change of variables". The European Physical Journal Special Topics (2023): http://dx.doi.org/10.1140/epjs/s11734-023-01013-1.
    10.1140/epjs/s11734-023-01013-1
  5. Allan Kardec de Almeida, Junior; Antonio F.B.A. Prado; Daniele Mortari. "Using the theory of functional connections to create periodic orbits with a linear variable thrust". New Astronomy (2023): https://doi.org/10.1016/j.newast.2023.102068.
    10.1016/j.newast.2023.102068
  6. Leonardo Barbosa Torres dos Santos; P.A. Sousa-Silva; M.O. Terra; S. Aljbaae; D.M. Sanchez; A.F.B.A. Prado; G.M. Oliveira; et al. "Analysis of the dynamics of a spacecraft in the vicinity of an asteroid binary system with equal masses". Planetary and Space Science (2023): 105701-105701. http://dx.doi.org/10.1016/j.pss.2023.105701.
    10.1016/j.pss.2023.105701
  7. Santos, L. B. T.; de Almeida Jr, A. K.; Sousa-Silva, P. A.; Terra, M. O.; Sanchez, D. M.; Aljbaae, S.; Prado, A. F. B. A.; Monteiro, F.. "NUMERICAL INVESTIGATIONS OF THE ORBITAL DYNAMICS AROUND A SYNCHRONOUS BINARY SYSTEM OF ASTEROIDS". Revista Mexicana de Astronomía y Astrofísica 59 1 (2023): 83-97. http://dx.doi.org/10.22201/ia.01851101p.2023.59.01.05.
    Open access • Accepted • 10.22201/ia.01851101p.2023.59.01.05
  8. Santos, L.B.T.; Sousa-Silva, P.A.; Terra, M.O.; Mani, Karthik V.; de Almeida Jr, Allan K.; Sanchez, D.M.; Prado, A.F.B.A.. "Optimal transfers from Moon to L2 halo orbit of the Earth-Moon system". Advances in Space Research 70 11 (2022): 3362-3372. http://dx.doi.org/10.1016/j.asr.2022.08.035.
    10.1016/j.asr.2022.08.035
  9. de Almeida Jr, Allan K.; Vivian M. Gomes; Antonio Prado. "Lifetimes of an Exomoon Orbiting a Jupiter-like Planet in a Double Star System with the Mass of the Sun". Symmetry (2022): https://doi.org/10.3390/sym14102001.
    10.3390/sym14102001
  10. de Almeida Jr, Allan K.; Mescolotti, Bruna Yukiko Pinheiro Masago; Chiaradia, Ana Paula Marins; Gomes, Vivian M.; de Almeida Prado, Antonio Fernando Bertachini. "Searching for Orbits for a Mission to the Asteroid 2001SN263 Considering Errors in the Physical Parameters". Symmetry 14 9 (2022): 1789. http://dx.doi.org/10.3390/sym14091789.
    10.3390/sym14091789
  11. de Almeida Jr, Allan K.; de Almeida Prado, Antonio Fernando Bertachini. Corresponding author: de Almeida Jr, Allan K.. "Comparisons between the circular restricted three-body and bi-circular four body problems for transfers between the two smaller primaries". Scientific Reports 12 1 (2022): http://dx.doi.org/10.1038/s41598-022-08046-x.
    10.1038/s41598-022-08046-x
  12. de Almeida Jr, Allan K.; Johnston, Hunter; Leake, Carl; Mortari, Daniele; de Almeida Junior, A.K.; Johnston, H.; Leake, C.; Mortari, D.. Corresponding author: de Almeida Jr, Allan K.. "Fast 2-impulse non-Keplerian orbit transfer using the Theory of Functional Connections". The European Physical Journal Plus 136 2 (2021): http://dx.doi.org/10.1140/epjp/s13360-021-01151-2.
    10.1140/epjp/s13360-021-01151-2
  13. Junior, Allan; OLIVEIRA, Geraldo Magela Couto; PRADO, Antonio Fernando Bertachini de Almeida. Corresponding author: Junior, Allan. "Artificial equilibrium points and bi-impulsive maneuvers to observe 243 Ida". Chinese Journal of Aeronautics 34 1 (2021): 410-423. http://dx.doi.org/10.1016/j.cja.2020.07.018.
    10.1016/j.cja.2020.07.018
  14. Venditti, Flaviane C.F.; de Almeida Jr, Allan K.; Prado, Antonio F.B.A.. Corresponding author: de Almeida Jr, Allan K.. "Using an integral index to search for orbits around oblate spheroids". Planetary and Space Science 192 (2020): 105063. http://dx.doi.org/10.1016/j.pss.2020.105063.
    10.1016/j.pss.2020.105063
  15. de Almeida Jr, Allan K.; Prado, Antonio Fernando Bertachini de Almeida; Yokoyama, Tadashi; Sanchez, Diogo Merguizo. Corresponding author: de Almeida Jr, Allan K.. "Searching for orbits to observe the poles of celestial bodies". Advances in Space Research 66 10 (2020): 2378-2401. http://dx.doi.org/10.1016/j.asr.2020.07.043.
    10.1016/j.asr.2020.07.043
  16. de Almeida Jr, Allan K.; Piñeros, Jhonathan Orlando Murcia; Prado, Antonio Fernando Bertachini de Alme. Corresponding author: de Almeida Jr, Allan K.. "On the use of a continuous thrust to find bounded planar trajectories at given altitudes in Low Earth Orbits". Scientific Reports 10 1 (2020): http://dx.doi.org/10.1038/s41598-020-65594-w.
    10.1038/s41598-020-65594-w
  17. de Almeida Jr, Allan K.; Bertachini de Almeida Prado, A.F.; Vilhena de Moraes, R.; Lara, M.. Corresponding author: de Almeida Jr, Allan K.. "Analyzing “integral indices” to quantify the effects of a perturbing force over satellites". Acta Astronautica 164 (2019): 168-173. http://dx.doi.org/10.1016/j.actaastro.2019.07.037.
    10.1016/j.actaastro.2019.07.037
  18. de Almeida Jr, Allan K.; Prado, A. F. B. A.; Yokoyama, T.. Corresponding author: de Almeida Jr, Allan K.. "Determination of thrusts to generate artificial equilibrium points in binary systems with applications to a planar solar sail". Nonlinear Dynamics 95 2 (2018): 919-942. http://dx.doi.org/10.1007/s11071-018-4605-3.
    10.1007/s11071-018-4605-3
  19. Junior, Allan; Prado, A. F. B. A.; Yokoyama, T.; Sanchez, D. M.. "Spacecraft motion around artificial equilibrium points". Nonlinear Dynamics 91 3 (2017): 1473-1489. http://dx.doi.org/10.1007/s11071-017-3959-2.
    10.1007/s11071-017-3959-2
  20. Junior, Allan; de Almeida Prado, A. F. B.; de Moraes, R. Vilhena; Lara, M.. "Analyzing “integral indices” to quantify the effects of a perturbing force in the harmonic and Duffing oscillators". Computational and Applied Mathematics 37 S1 (2017): 7-15. http://dx.doi.org/10.1007/s40314-017-0471-8.
    10.1007/s40314-017-0471-8
  21. Junior, Allan; Prado, A.F.B.A.; Sanchez, D.M.; Yokoyama, T.. Corresponding author: Junior, Allan. "Searching for artificial equilibrium points to place satellites "above and below" L3 in the Sun-Earth system". Revista Mexicana de Astronomia y Astrofisica 53 2 (2017): 349-359. http://www.astroscu.unam.mx/rmaa/RMxAA..53-2/PDF/RMxAA..53-2_aalmeida.pdf.
  22. Junior, Allan; Egydio de Carvalho, R.; de Lima, E.F.. "Controlling dissociation by trapping trajectories in highly energetic states". Physica A: Statistical Mechanics and its Applications 449 (2016): 101-110. http://dx.doi.org/10.1016/j.physa.2015.12.109.
    10.1016/j.physa.2015.12.109
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2023/03/01 Satellite Characterization Using TFC and Machine Learning 9th Annual Space Traffic Management Conference held at The University of Texas at Austin, TX, US
University of Texas at Austin (Austin, United States)
2022/06/20 Orbit Transfer using Theory of Functional Connections via change of variables 5th International Workshop On Key Topics In Orbit Propagation Applied To Space Situational Awareness, Kepassa 2022 at University of La Rioja, in Logroño, Spain
University of La Rioja (Logrono, Spain)
2021 A comparison of the restricted three-body problem and the bi-circular bi-planar four body problem 2021 AAS/AIAA Astrodynamics Specialist Conference in Big Sky, US
American Astronautica Society (Big Sky, United States)
2020/08/09 Evaluation of Transfer Costs in the Earth-Moon System using the Theory of Functional Connections 2020 AAS/AIAA Astrodynamics Specialist Conference in Lake Tahoe, CA, US
AAS/AIAA - American Astronautical Society (Lake Tahoe, United States)
2019/02/19 First International Nonlinear Dynamics Conference NODYCON 2019 held at Sapienza Università di Roma in Roma, Italy First International Nonlinear Dynamics Conference NODYCON 2019 held at Sapienza Università di Roma in Roma, Italy
Sapienza Università di Roma (Roma, Italy)

Journal scientific committee

Journal title (ISSN) Publisher
2023/01/01 - Current Acta Astronautica (0094-5765) Elsevier
2023/01/01 - Current The European Physical Journal Special Topics (1951-6355) Springer
2020 - Current Scientific Reports (2045-2322) Nature
2020 - Current Advances In Space Research (0273-1777) Elsevier
2020 - Current Journal of Guidance Control And Dynamics (1533-3884) AIAA
2017 - Current Nonlinear Dynamics (0924-090X) Springer

Mentoring / Tutoring

Topic Student name
2022/01/01 - 2026/01/01 Solution of the circular and elliptical two-body problems through Theory of Functional Connections (TFC) using linear and nonlinear least squares method Guillherme Siqueira
Distinctions

Award

2019 Best PhD doctoral thesis defended in 2018 at INPE - National Institute for Space Research
Instituto Nacional de Pesquisas Espaciais, Brazil