Quiz 2b_ Orbital Mechanics - Fall 2022 Section Group 1P8

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8/30/22, 8:09 PM Quiz 2b: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144746 1/3 Quiz 2b Due Sep 4 at 11:59pm Points 3 Questions 3 Time Limit None Instructions Attempt History Attempt Time Score LATEST Attempt 1 6 minutes 3 out of 3 Score for this quiz: 3 out of 3 Submitted Aug 30 at 8:09pm This attempt took 6 minutes. Quiz 2b 1 / 1 pts Question 1 What is the semimajor axis of the orbit? An earth-orbiting satellite has position and velocity vectors with the following components in the ECI (Earth-centered Inertial) frame: r = [ -1721.715871427221 6028.195061110981 5151.160663983847 ] km v = [ -7.255857355543125 -1.751199252896194 1.635573597083453 ] km/s 10,000 km Correct! Correct! 9,0000 km 11,000 km 13,000 km
8/30/22, 8:09 PM Quiz 2b: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144746 2/3 1 / 1 pts Question 2 An earth-orbiting satellite has position and velocity vectors with the following components in the ECI (Earth-centered Inertial) frame: r = [ -3768.898590749048 5775.168162840780 5666.276730382231 ] km v = [ -6.115766984337169 -3.639592684497697 1.559458236776916 ] km/s What is the eccentricity of the orbit? Enter your answer with three digits to the right of the decimal place. 0.25 Correct! Correct! orrect Answers orrect Answers 0.25 (with margin: 0.005) Note that there are two distinct ways to arrive at the desired answer: 1) Compute the eccentricity vector (Section 1.5.4) and compute its magnitude 2) Use Eq. (1.6-4) 1 / 1 pts Question 3 An earth-orbiting satellite has position and velocity vectors with the following components in the ECI (Earth-centered Inertial) frame: r = [ -3768.898590749048 5775.168162840780 5666.276730382231 ] km v = [ -6.115766984337169 -3.639592684497697 1.559458236776916 ] km/s What is the inclination of the orbit? Enter your answer in radians with three digits to the right of the decimal place.
8/30/22, 8:09 PM Quiz 2b: Orbital Mechanics - Fall 2022 Section Group 1P8 https://canvas.unm.edu/courses/19370/quizzes/144746 3/3 0.7 Correct! Correct! orrect Answers orrect Answers 0.7 (with margin: 0.01) Inspect the components of the angular momentum vector. Does the inclination result make sense? Quiz Score: 3 out of 3
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