Julia Marín-Yaseli de la Parra

Engineer on Science Ground Segment Operations at Mars Express


Main Research Fields

Investigation of individual dust particles in the coma of comet 67P/Churyumov-Gerasimenko.

PhD first year directed by Michel Kueppers at ESA.


  • Astrophysicist
  • Planetary sciences
  • Cometary research
  • Dust

Ongoing collaborations

MPS, Göttingen, Germany (OSIRIS/Rosetta)

The OSIRIS scientific imaging system was built by a consortium led by the Max Planck Institute for Solar System Research (Germany) in collaboration with CISAS, University of Padova (Italy), the Laboratoire d'Astrophysique de Marseille (France), the Instituto de Astrofísica de Andalucía, CSIC (S(Spain), ESA's Scientific Support Office, the Instituto Nacional de Técnica Aeroespacial (Spain), the Universidad Politécnica de Madrid (Spain), the Department of Physics and Astronomy of Uppsala UniveeUrsity (Sweden), and the Institute of Computer and Network Engineering of the TU Braunschweig (Germany). OSIRIS was financially supported by the national funding agencies of Germany (DLR), France (CNES), Italy (ASI), Spain (MEC) and Sweden (SNSB), and the ESA Directorate of Technical & Quality Management.


Apr 10, 2017 Asteroids, Comets, Meteors - ACM2017 - Montevideo Congress

During the more than 2 years that Rosetta stayed at comet 67P, the OSIRIS camera system monitored the evolution of the dust coma from 4.1 AU inbound to 3.8 AU outbound. One of the surprises of the Rosetta mission was the large number of big (cm to dm sized) particles that could be identified individually. Some authors suggest that those particles are the pebbles that formed the comet in the protoplanetary disk. We plan to analyze the dust populations to compare measured size distributions to those predicted by formation models.

See publication


Science Data Volume management for the Rosetta spacecraft
May 1, 2016 Conference: 14th International Conference on Space Operations DOI: 10.2514/6.2016-2489

See publication


The Evolution of Rosetta-Philae Science Planning Processes Following the Philae Landing
May 1, 2016 Conference: 14th International Conference on Space Operations DOI: 10.2514/6.2016-2488

Project/mission at ESA

  • (06/2015 - 10/2016) Rosetta SGS team
  • (10/2016 - Present)  Mars Express SGS team