Orbit Determination Quiz
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Questions and Answers

What is the minimal set of parameters required for orbit determination?

  • (a,e) (semimajor axis, eccentricity) at a given time
  • (i, heta) (inclination, true anomaly) at a given time
  • (r,v) (position, velocity) at a given time (correct)
  • (T, heta) (period, true anomaly) at a given time

    • What are the primary sources of discrepancies between predicted and true values in orbit determination?

  • Errors or inadequacy of the dynamical model (correct)
  • Measurement noise, limiting the accuracies of the observations
  • Errors in the numerical procedure
  • All of the above

    • Why is it virtually impossible to propagate the state of a spacecraft for very long times without incurring in serious discrepancies?

  • Due to errors in the numerical procedure
  • Due to errors or inadequacy of the dynamical model (correct)
  • Due to measurement noise, limiting the accuracies of the observations
  • Due to limitations of the available technology

    • What are the measurements linked to the dynamical state used for orbit determination?

    <p>Range, range-rate, angles</p> Signup and view all the answers

    What is the textbook used for this module on orbit determination?

    <p>TAPLEY, SCHUTZ, BORN: Statistical Orbit Determination, Elsevier (2004)</p> Signup and view all the answers

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