Spacecraft Ground and Launch Operations
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Questions and Answers

What is the purpose of the 'mission requirements' in space system development?

  • To establish the 'mission orbit' and 'payload types'
  • To select the launch segments and spacecraft design
  • To define the 'mission need' and 'the How'
  • To meet the 'mission need' and 'the What' (correct)

What is one of the key factors required for launch selection?

  • Sufficient payload data processing
  • Comprehensive spacecraft flight operations
  • Acceptable ride and good record (correct)
  • Real-time processing payload dissemination infrastructure

What does the statement 'Mother Nature gets a vote and her vote counts' imply?

  • Environmental regulations impact space system development
  • Nature plays a significant role in spacecraft development
  • Natural forces can affect the success of space missions (correct)
  • The final decision in space system development is influenced by environmental factors

What is the primary role of 'spacecraft design' in space system development?

<p>To integrate launch loads imparted to the spacecraft (A)</p> Signup and view all the answers

What is the purpose of 'payload data dissemination' in ground activities?

<p>To disseminate payload data to relevant users (D)</p> Signup and view all the answers

What does the term 'throw weight' refer to in the context of launch selection?

<p>The weight-carrying capacity of a spacecraft (A)</p> Signup and view all the answers

What is a common mistake often made during the requirements generation process in space system development?

<p>Incorporating 'the How' in the mission requirements (B)</p> Signup and view all the answers

'Ground facilities and locations', 'computers/software', and 'personnel/training' are primarily associated with which phase of space system development?

<p>'Spacecraft development process' (B)</p> Signup and view all the answers

What does 'waterfall (sequential)' and 'spiral (iterative)' refer to in space system development?

<p>'Styles of space system development' (C)</p> Signup and view all the answers

What is one of the key requirements for successful integration during launch?

<p>Mechanical/electrical integration (D)</p> Signup and view all the answers

What is the primary reason why the traditional 'waterfall' development process suffers from disadvantages?

<p>Lack of customer involvement, feedback, and technology obsolescence (C)</p> Signup and view all the answers

What is emphasized in the Concurrent development and manufacturing processes to optimize overall time to market and development productivity?

<p>All of the above (D)</p> Signup and view all the answers

What does the spiral development approach emphasize in terms of working with the user?

<p>Working with the user to identify gaps in requirements (C)</p> Signup and view all the answers

Which process allows full application of systems engineering to assure requirements are methodically managed from component levels through system levels?

<p>Concurrent development and manufacturing processes (B)</p> Signup and view all the answers

What is a key challenge associated with the spiral development approach?

<p>Cost prohibitive to 'tweak' the product forever (A)</p> Signup and view all the answers

How does the traditional 'waterfall' development process generally proceed?

<p>From requirements analysis to operations (D)</p> Signup and view all the answers

What is highlighted as a good feature of the spiral development approach?

<p>Identifying gaps in requirements as work progresses into more detail (C)</p> Signup and view all the answers

Why does the spiral development approach require serious discipline on the part of the users?

<p>'Tweaking' the product without meaningful realistic feedback (C)</p> Signup and view all the answers

How does the Concurrent development and manufacturing processes intend to optimize overall time to market and development productivity?

<p>'Tweaking' the product based on user feedback before expensive prototypes and tooling are built (B)</p> Signup and view all the answers

What is depicted by the spiral model according to the text?

<p>Four cycles which are sufficient for getting the product right (C)</p> Signup and view all the answers

What type of testing involves checking if subsystems work together?

<p>Functional testing (C)</p> Signup and view all the answers

Where may performance characterization be often performed?

<p>In the thermal vacuum chamber (C)</p> Signup and view all the answers

What is used for safely operating systems like propulsion and attitude control on the ground?

<p>Stimulators for sensors (A)</p> Signup and view all the answers

According to Dr. Mohamed Elfarran's summary, at what level does the system integration and test process start?

<p>Component level (C)</p> Signup and view all the answers

What does the statement 'Mother Nature gets a vote and her vote counts' imply in the context of space system development?

<p>The significance of considering environmental factors in space system development (A)</p> Signup and view all the answers

What are typically involved in the final system demo for space systems?

<p>Ground and space segments (B)</p> Signup and view all the answers

What is the primary purpose of the end-to-end test of the entire space system?

<p>To verify the system's functionality in space (A)</p> Signup and view all the answers

What is the key objective of qualification testing in space system development?

<p>To determine system suitability for mission (B)</p> Signup and view all the answers

What is the purpose of thermal cycling in space system testing?

<p>To subject components to temperature variations (B)</p> Signup and view all the answers

What is emphasized in the launch flow phase to ensure no damage during shipping?

<p>Testing to ensure no damage during shipping (C)</p> Signup and view all the answers

What is the primary focus of establishing communications with all players during the launch flow phase?

<p>Establishing data and voice networks (A)</p> Signup and view all the answers

What is a key objective of structural testing in space system development?

<p>Subjecting components to static and dynamic tests (D)</p> Signup and view all the answers

What is the primary challenge associated with thermal vacuum testing in space system development?

<p>Simulating space-like conditions (D)</p> Signup and view all the answers

What is one of the key goals of functional testing in space system development?

<p>&quot;Life&quot; testing involving various exposures (A)</p> Signup and view all the answers

What is the main purpose of life testing in functional testing of space systems?

<p>&quot;Life&quot; testing from component to system level (D)</p> Signup and view all the answers

'Ground, Space, and Launch' represent the segments of a space system. What is a characteristic of 'Ground' segment?

<p>Administration and work spaces for launch team (C)</p> Signup and view all the answers

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