15 Questions
What are the fundamental components of an Attitude Control System (ACS) for a spacecraft?
Attitude sensors, attitude determination and control software, actuators
Which category of control is considered more accurate and versatile for spacecraft?
Active control
What is the main task of an Attitude Control System (ACS) for a spacecraft?
Determine and accurately reconstruct the spatial orientation of the spacecraft, and keep the spacecraft in the desired spatial orientation
What is the purpose of attitude sensors in an Attitude Control System (ACS)?
To determine the spatial orientation of the spacecraft
What is the difference between passive control and active control for spacecraft?
Passive control is simple but much less accurate, while active control is more complex and expensive but also much more accurate and versatile
What is the minimal set of parameters required for orbit determination?
(r,v) (position, velocity)
Which factor contributes to the predicted values differing from the true ones in orbit determination?
All of the above
What is the consequence of errors or inadequacy in the dynamical model in orbit determination?
The state determination must be repeated
What is the state of a dynamical system?
The set of parameters required to predict the future evolution of the system
What are the measurements linked to the dynamical state in orbit determination?
Range, range-rate, angles
In the context of tracking configurations, what is the distinguishing feature of a three-way configuration?
It involves both downlink and uplink signals, as well as an onboard transponder
What type of commands are associated with telecommand in the context of uplink?
Control commands
Which segment of the space system is responsible for receiving telemetry data?
Control Station (TT&C)
What distinguishes a two-way tracking configuration from a one-way configuration?
Carrier is generated by the ground station using the station master frequency standard
Which type of signals does the ground segment handle for uplink and downlink activities?
Telemetry and telecommand signals
Test your knowledge of space missions and systems attitude control with this quiz for the Master's degree course in Aerospace Engineering at Sapienza University of Rome. Covering topics such as spatial orientation of spacecraft and control of orbiting platforms, this quiz will challenge your understanding of spacecraft dynamics and control.
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