Sumários

Attitude Determination and Control Systems (I)

17 Novembro 2020, 11:00 André Maria da Silva Dias Moitinho de Almeida

:: What is an Attitude Determination and Control System (ADCS)
- What is attitude?
- Why determine and control?
- Requirements and constraints
- Control loop


Analysis of the population of orbital objects (part I)

12 Novembro 2020, 09:30 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
- Online databases
- SGP4 orbit propagator

:: Preparation of the development and analysis environment
- Installation of python 3, datetime, csv and ephem packages
- Jupyter notebook
- TOPCAT


Propulsion systems (II)

12 Novembro 2020, 08:30 André Maria da Silva Dias Moitinho de Almeida

:: Propulsion systems in detail
- Chemical propulsion
- Electric propulsion
- Nuclear propulsion
- Solar-Thermal Propulsion
- Propellant-free systems


Satellites - problem sheet 1 (continued)

10 Novembro 2020, 12:00 André Maria da Silva Dias Moitinho de Almeida

Work on problem sheet: Satellites-1


Propulsion systems (I)

10 Novembro 2020, 11:00 André Maria da Silva Dias Moitinho de Almeida

:: Introduction
- Propulsion purposes and requirements
- Types and comparison of propulsion systems
- The rocket equation
- Effects of rocket nozzle expansion

Further reading:
Chapter 6 of Fortescue et al. (Spacecraft Systems Engineering)