AEROSPACE ENGINEERING ASSIGNMENT

August 17, 2021

AEROSPACE ENGINEERING ASSIGNMENT QUESTION

1.Calculate the departure DV from Earth to Mars, assuming:

i)Hohmann transfer/patched conic approximation

ii)Departure from a 500 km circular orbit at Earth (ignore the Dv to launch from earth surface to LEO.)

2. At Mars, what is the required orbit insertion DV for capture into a 500 km altitude circular orbit? ●

3. What should the B-plane miss distance be to achieve the 500 km orbit altitude?

4. The spacecraft is intended to map the surface of Mars and is to be placed into a sun-synchronous orbit at Mars having a periapsis altitude of 500 km and period of 1/7 of a Martian day.

i) What is the Dv required to raise the orbit apoapsis from the circular parking orbit to the new elliptical orbit?

ii) What should the inclination be for the sun-synchronous orbit?

5. Since the spacecraft can only see (at best resolution) a small portion of the planet during a low altitude pass, it is planned to map essentially the entire planet by “walking” the periapsis around the planet. Each region of latitude will be mapped as the planet rotates beneath the orbit, and as the nodal line regresses. What initial value of the argument of periapsis should be selected to minimize the time required to conduct this mission? How long will it take to map the planet?

6.After the high-resolution mapping outlined in Problem 4 is completed, it is desired to change the plane of the orbit to an inclination of 90o so as to map the polar regions. What is the minimum DV required to effect this plane chan

Distinguished

(100%)

Proficient

(85%)

Basic

(70%)

Below Expectations

(50%)

Non-Performance

(0%)

Thesis Statement

Raises the strongest objection to the thesis presented in the assignment. The objection is strongly grounded in research and logical reasoning.

Raises a plausible objection to the thesis presented in the assignment. The objection is mostly grounded in research and logical reasoning.

Raises an objection to the thesis presented in the assignment. The objection is somewhat grounded in research and logical reasoning.

Attempts to raise an objection to the thesis presented in the assignment. The objection is minimally grounded in research and logical reasoning.

The objection to the thesis is either nonexistent or lacks the components described in the assignment instructions.

Counter Argument

Provides a strong, thorough rebuttal to the objection. The rebuttal effectively demonstrates that the thesis can withstand the objection and applies the principles of charity and accuracy.

Provides a rebuttal to the objection. The rebuttal mostly demonstrates that the thesis can withstand the objection and mostly applies the principles of charity and accuracy.

Provides a limited rebuttal to the objection. The rebuttal somewhat demonstrates that the thesis can withstand the objection and somewhat applies the principles of charity and accuracy.

Attempts to provide a rebuttal to the objection; however, the rebuttal minimally demonstrates that the thesis can withstand the objection and does not apply the principles of charity and accuracy.

The rebuttal is either nonexistent or lacks the components described in the assignment instructions.

Conclusion

– Provides clear and concise closing remarks that comprehensively summarize the essay. The remarks consider the broader controversy and/or further research that could offer additional insight into the moral solution of the business problem.

Provides closing remarks that summarize the essay. The remarks mostly consider the broader controversy and/or further research that could offer additional insight into the moral solution of the business problem. The closing remarks are somewhat unclear.

Provides closing remarks that minimally summarizes the essay. The remarks minimally consider the broader controversy and/or further research that could offer additional insight into the moral solution of the business problems. The closing remarks are unclear and/or vague.

Attempts to provide closing remarks that summarize the essay, however, the remarks do not consider the broader controversy and/or further research that could offer additional insight into the moral solution of the business problem. The closing remarks are unclear and vague.

The closing remarks are either nonexistent or lack the components described in the assignment instructions.

Written Communication: Context of and Purpose for Writing

Demonstrates methodical application of organization and presentation of content. The purpose of the writing is evident and easy to understand. Summaries, quotes, and/or paraphrases fit naturally into the sentences and paragraphs. Paper flows smoothly.

Demonstrates sufficient application of organization and presentation of content. The purpose of the writing is, for the most part, clear and easy to understand. There are some problems with the blending of summaries, paraphrases, and quotes. Paper flows somewhat smoothly.

Demonstrates a limited understanding of organization and presentation of content in written work. The purpose of the writing is somewhat evident but may not be integrated throughout the assignment. There are many problems with the blending of summaries, paraphrases, and quotes. Paper does not flow smoothly in all sections.

Organization and presentation of content are extremely limited. The purpose of the writing is unclear. There is little or no blending of summaries, paraphrases, and quotes. Paper does not flow smoothly when read.