Sökning: "Spacecraft"

Visar resultat 1 - 5 av 122 uppsatser innehållade ordet Spacecraft.

  1. 1. A study on Hall Effect Thruster exhaust plume simulation

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Andrius Sukys; [2020]
    Nyckelord :;

    Sammanfattning : The results of the attempt to simulate a 1,5 kW-class Stationary PlasmaThruster (SPT) type Hall Effect thruster exhaust plumes are presented.This work focuses on the simulation of the near field region since acharged particle can directly affect the other systems of the spacecraft,such as solar panels, camera etc. LÄS MER

  2. 2. Orbit determination of asteroids using streak information

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Samuel Ocana Losada; [2020]
    Nyckelord :asteroids; orbit determination; streaks; trailed observations;

    Sammanfattning : Asteroids are becoming a stepping stone for the human space exploration,as much as they are a threat for human life on Earth. Several agencies haveproved that sending spacecraft to an asteroid is already feasible so privatecompanies are starting to look into how to exploit this new resources we havenow at hand. LÄS MER

  3. 3. FORESAIL-2 AOCS Trade Studies and Design

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Guillaume Le Bonhomme; [2020]
    Nyckelord :space engineering; CubeSat; ADCS; AOCS; spacecraft subystems; nanosatellite;

    Sammanfattning : This thesis aims to design a reliable CubeSat platform, including the avionic subsystems that can sustain a high radiation environment for a mission having a lifetime of at least six months. The science instruments put stringent requirements on the platform to achieve and maintain the desired spin rate. LÄS MER

  4. 4. Accessibility Studies of Potentially Hazardous Asteroids from the Sun-Earth L2 Libration Point

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :GAUTHAM GANESAN; [2020]
    Nyckelord :Near-Earth Objects; Potentially Hazardous Asteroids; Halo Orbit; Invariant Manifolds; Analytical construction; Palermo Scale; Low-Energy transfer;

    Sammanfattning : A newly proposed F-class mission by the European Space Agency (ESA) in 2019,Comet Interceptor, aims to dynamically intercept a New Solar System Objectsuch as a Dynamically New Comet (DNC). The Spacecraft will be placed in aperiodic (Halo) orbit around the Sun-Earth L2 Lagrangian point, waiting for furtherinstructions about the passage of a comet or an asteroid, which could well bereached within the stipulated mission constraints. LÄS MER

  5. 5. Detection of in-plane orbital manoeuvres from a catalogue of geostationary objects

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Phuong Linh Ngo; [2020]
    Nyckelord :manoeuvre detection; geostationary orbit; perturbations; filters; Two-line elements; station keeping;

    Sammanfattning : The number of man-made space objects is dramatically growing nowadays. The continuous monitoring and studying of these objects are necessary to keep their number under control and ensure safe space operations. LÄS MER