Sumários

Introduction to Space Systems Engineering (II)

14 Novembro 2024, 11:30 André Maria da Silva Dias Moitinho de Almeida

The space environment

  • Overview
  • Effects on mission design
    • Radiation and thermal shielding
    • Cleaning
    • Effects of weightlessness
    • Other


Analysis of the orbital object population (part II)

12 Novembro 2024, 09:00 André Maria da Silva Dias Moitinho de Almeida

  • Analysis of the full population of tracked orbital objects
    • Ingesting a file with TLEs for many objects
    • Orbit integration and exception handling
    • Computation of cartesian positions
    • 3D visualisation of the orbital population
    • Export computations to CSV file for analysis with other software
  • Multi-panel exploration of orbits and other attributes with TOPCAT
    • TOPCAT tutorial 
    • Multi-dimensional analysis of orbital objects using multiple panels with linked views
    • Identification of families of orbital objects


Introduction to Space Systems Engineering (I)

12 Novembro 2024, 08:00 André Maria da Silva Dias Moitinho de Almeida

  • Introduction
    • Systemic vision of the space mission
    • Space Segment: "Service modules" and "payloads"
    • Launchers,
    • Ground Segment
    • Weight and costs


Introduction to orbit mechanics - II

7 Novembro 2024, 11:30 André Maria da Silva Dias Moitinho de Almeida

  • Orbit types 
    • LEO
    • GEO
    • Molniya
    • Polar
    • MEO and Satellite constellations


Analysis of the orbital object population (part I)

5 Novembro 2024, 09:00 André Maria da Silva Dias Moitinho de Almeida

Computational exercise for studying the population of orbital objects described in "Two / Three Line Elements" (TLEs)

Orbital data
  • Formats: TLEs, xml, etc
  • Contents
  • Sources: Online databases (Space-Track, Celestrack, ESA Discos)
  • SGP orbit propagation

Analysis of a single object
  • Explanation of the ephem and datetime python packages
  • Reading a TLE for a single object
  • Orbit integration
  • Inspection of the output of orbit integration
  • Orbit visualisation