Sökning: "orbit"

Visar resultat 11 - 15 av 308 uppsatser innehållade ordet orbit.

  1. 11. Model-Observation Comparisons of O+ Concentrations in the Martian Ionosphere

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Chinmaya Nagar; [2023]
    Nyckelord :MAVEN; NGIMS; Martian; Ionosphere; Fehsenfeld; Tenewitz;

    Sammanfattning : A few years ago, the charge-transfer reaction CO2+  +  O ⟶ O+ + CO2 was investigated experimentally for the first time since the study by Fehsenfeld et al., (1970). This new investigation was conducted by Tenewitz et al., (2018). LÄS MER

  3. 12. Flight dynamics multi-mission software development for optical link planning and execution

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Giacomo Dal Toso; [2023]
    Nyckelord :Generic Planning Tool; Visibility Service; Link Support Service; Visibility Windows; Flight Dynamics; Mission Planning;

    Sammanfattning : The Generic Planning Tool (GPT) is a new software package being developed by the Flight Dynamics team at DLR. In an era where laser communications are becoming more and more relevant to data transmission for space missions, the GPT’s purpose is to compute highly accurate visibility windows and provide a wide variety of support information for both satellite-to-ground and inter-satellite links. LÄS MER

  4. 13. Flight Dynamics Software Industrialisation for Inclined Orbits

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Pierrick Houede; [2023]
    Nyckelord :flight; dynamics; software; FDS; geostationary; orbit; station; keeping; uncontrolled; inclination.;

    Sammanfattning : The geostationary orbit has many applications for Earth observation and telecommunications. Like all satellites, spacecraft in this type of orbit are affected by perturbations. These perturbations can modify the satellites trajectories and, without control, deviate them from their target position. LÄS MER

  5. 14. A performance comparison between quadtree and tessellation LOD solutions for planetary terrain

    Kandidat-uppsats, Blekinge Tekniska Högskola

    Författare :Julius Wendt; [2023]
    Nyckelord :level of detail; planetary; rendering; quadtree; tessellation;

    Sammanfattning : Background. Rendering planets with high detail from orbit to surface level is becoming increasingly common in video games. In this thesis, two solutions to achieving this will be compared, a quadtree solution and a tessellation solution. These solutions both implement an adaptive level of detail on a spherical shape. LÄS MER

  7. 15. Thermal environment and design considerations of the Foresail-2 satellite mission

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Deepa Anantha Raman; [2023]
    Nyckelord :satellite; thermal control; radiation; heat transfer; boom;

    Sammanfattning : The thermal design of small satellite missions is critical for ensuring the performance and longevity of onboard instruments. This thesis focuses on the thermal design of Foresail-2, a 6U CubeSat mission to Geostationary Transfer Orbit (GTO), specifically addressing the thermal challenges associated with the magnetometer located at the end of a long boom featured on the satellite. LÄS MER