Essays about: "orbital simulations"

Showing result 21 - 25 of 51 essays containing the words orbital simulations.

  1. 21. Development and testing of algorithms for optimal thruster command distribution during MTG orbital manoeuvres

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Lars Sprengelmeyer; [2020]
    Keywords : linear programming algorithms; linear optimization; thruster command distribution; thruster control; Simplex; Karmarkar s method; minimum power controller; minimum flow rate controller; minimum control authority;

    Abstract : An accurate satellite attitude and orbit control is a key factor for a successful mission. It guarantees for example sun acquisition on solar panels, fine pointing for optimal telescope usage or satellite lifting to reach higher orbits, when required. READ MORE

  3. 22. Effects of planetary radius contraction on scattering

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Viktor Hrannar Jónsson; [2020]
    Keywords : Physics and Astronomy;

    Abstract : The observed high orbital eccentricities of many giant exoplanets is thought to be the result of gravitational scattering between planets. Outcomes of planet-planet scattering can result in some planets being lost by ejections into interstellar space, or collisions between planets or with the star. READ MORE

  4. 23. Stars Eating Planets

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : John Wimarsson; [2020]
    Keywords : Earth and planetary astrophysics; planetary dynamics; planet-planet scattering; planet consumption; Physics and Astronomy;

    Abstract : In a phase of instability during the dynamical evolution of some multiple exoplanetary systems, exchange of angular momentum and/or energy through gravitational interactions between planets will lead to alterations of their orbital properties. In some cases, planetary orbits end up crossing, which leads to close encounters between two planets. READ MORE

  5. 24. Capture of interstellar objects in the Solar system

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Jonathan Petersson; [2020]
    Keywords : interstellar objects; Physics and Astronomy;

    Abstract : Research on InterStellar Objects (ISOs) has been done for several decades, however, the first observed ISO in the Solar system was only recently discovered in 2017. It was named 1I/'Oumuamua and was only passing though the Solar system, but this may not be the case for all objects of its kind. READ MORE

  6. 25. The I2T5 : Enhancement of the Thermal Design of an Iodine Cold Gas Thruster

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Roger Michael Pereira; [2020]
    Keywords : Cold gas thruster; I2T5; CubeSat propulsion; thermal analysis; heat transfer; thermal resistance; orbital heat fluxes;

    Abstract : The I2T5, an iodine-propelled, cold gas thruster, developed by ThrustMe, France, is the first of its kind to make it successfully to space. Due to its simple, reliable and cost-effective design, it is a suitable propulsion system for CubeSat missions with low delta-V (ΔV) requirements. READ MORE