Searched for: department%3A%22Astrodynamics%255C+and%255C+Space%255C+Missions%22
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Solari, M. (author)
master thesis 2017
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Hellard, H. (author)
The Saturnian moon Enceladus is one of the most geologically active bodies in the solar system. Ridged terrains dominated by intense tectonism are observed on both hemispheres while plume jets emanating from geological surface cracks are con?ned to the South Polar Terrain, thereby suggesting lateral heterogeneity of the satellite's internal...
master thesis 2017
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Annega, G. (author)
Spaceplane designers need to be able to rapidly obtain estimations of aerodynamic and stability parameters throughout the re-entry flight. This aids with design changes and trade-offs regarding the stability characteristics of the design. This software was developed with a focus on stability analysis in the Terminal Area Energy Management phase ...
master thesis 2017
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Munatsi, P. (author)
Spacecraft attitude refers to the orientation of the spacecraft body axes with respect to the inertial reference frame. Attitude determination and control is the estimation of the current orientation of a satellite and controlling or changing it on demand to reach a desired orientation. The SPS-2 Attitude Control System consists of four modes:...
master thesis 2017
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Lagaune, B.F. (author)
The attitude state of the passive Envisat satellite (ESA) has been estimated before using various techniques like Satellite Laser Ranging, radar and using light-curves. This research focusses on the use of Satellite Laser Ranging. Due to the relatively large (meter scale) offset between the center-of-mass of the satellite and the reflector where...
master thesis 2016
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Zucchelli, E M. (author)
master thesis 2016
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Girardin, V.E.J. (author)
The modelling of non-gravitational forces acting on a satellite (especially a GNSS satellite) started half a century ago. Their modelling to low Earth orbiters (LEOs), however, are more recent because of the dominating atmospheric drag, the modelling of which requires the precision of recent atmospheric models. However, this is not an issue for...
master thesis 2016
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Oomen, M.M. (author)
This thesis covers the design of the Attitude Control System for the SPS-2 configuration, developed at Airbus Defense and Space the Netherlands. The start of the SPS-2 mission consists of three phases: rate damping, Sun Acquisition and Sun Pointing. The SPS-2 satellite has five available mounting places for different payloads. In the first part...
master thesis 2016
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de Ridder, K.M. (author)
Convex guidance is a developing guidance algorithm that seeks to unify the trajectory optimisation for pin-point landings. The unification would mean the elimination of the need of different optimisation techniques for different stages of the landing. Using convex optimisation, convex guidance is guaranteed to find the global-optimum of the design...
master thesis 2016
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Parag, W. (author)
Io is known as the volcanically most active body in the Solar System. This volcanic activity is the consequence of tidal dissipation in this moon due to variations in the tidal forcing by Jupiter during an orbit. By developing Finite Element Models of this celestial body, the intensity and distribution of energy dissipation in the body and over...
master thesis 2016
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Obrecht, G. (author)
For the past 20 years, the small bodies of the solar system, such as asteroids and comets, have been increasingly gathering the interest of scientists and space agencies. The latter have been multiplying the number of space missions to study them. Brazil does not want to be left out and has been working on its own mission, ASTER, which has the...
master thesis 2016
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Belt, P. (author)
The retrieval of vertical winds by using acceleration data of satellites has never been done before and therefore the results will be unique. Two different methods can be developed for the retrieval of these winds. The first one is a two-dimensional approach and the second one uses the three-dimensional space. From the results for the vertical...
master thesis 2016
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Hess, J.R. (author)
Interplanetary missions use gravitational slingshots around planetary bodies to adjust their heliocentric velocity or inclination for quite some time. The momentum exchange that can be achieved during a so-called gravity assist is limited by the mass of the planetary body. To overcome this limitation, an aerogravity assist was proposed, a...
master thesis 2016
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Bhagat, M. (author)
This thesis is focused on autonomous trajectory planning for Active Debris Removal (ADR), commencing from far-range rendezvous and up to a point just before docking. Unlike typical rendezvous missions, the target in ADR is not designed for rendezvous and capture; it is usually uncooperative and possibly tumbling. If the satellite is unpassivated...
master thesis 2016
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Pirovano, L. (author)
Solar sails are big and lightweight structures that exploit the radiation from the Sun to propel the vehicle. They are very different from usual satellites since they yield a large moment of inertia, highly flexible parts and coupled attitude dynamics, orbital dynamics and structural vibrations. To these days studies that confirm the importance...
master thesis 2015
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Hoving, L. (author)
Around 1610 Galileo Galilei made his discovery of the four large moons orbiting Jupiter which are referred to now as the Galilean moons. The moons Europa and Ganymede attract a significant amount of scientific interest due to potential present subsurface oceans. As consequence, the design of missions to go there and explore the moon system are...
master thesis 2015
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Habets, J.M.G. (author)
Space debris has become a major issue for the space industry over the last couple of years. The increasing number of uncontrolled objects in space increases the chance of collision with a spacecraft. The unexpected loss of contact with ENVISAT, the European Space Agency’s largest environmental spacecraft, added one more piece of debris to the...
master thesis 2015
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Bergaretxe, E. (author)
On this MSc thesis we use two radar altimetry mission data in order to study the evolution oof the Greenland ice sheet during the period 2013-2014. The Throughout Earth’s history the cryosphere, and more specifically its ice sheets, have responded to every major climate change event by expanding or retreating its extension pulled on the...
master thesis 2015
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Papp, Z. (author)
Atmospheric entry is a process defined by extremes, from the great velocity at the point of entry to the high deceleration loads and aerodynamic heating in the lower layers of the atmosphere. In addition to the vehicle maintaining structural integrity, an equally important aspect of the re-entry mission is safety. This safety can only be...
master thesis 2014
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Roegiers, T.G.R. (author)
Since the development of the exponential sinusoid for low-thrust trajectory design by Petropoulos and Longuski [2004], more shape-based methods have emerged that ease up the work of a mission analyst. These methods are the ideal tool to generate a quick and almost complete overview of a large search space and are useful for producing first...
master thesis 2014
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