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Science Quiz / Space Systems 3

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Can you name the Space Systems 3?

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QuestionAnswerNotes
Name the 2 most commonly used reference planes in astrodynamics
Name another factor perturbing Keplerian orbits around the Earth
What is the tabulation of power losses and gains in a communications system called?
How do we measure the orbital position of a satellite?
How many geostationary satellites do you need to give full Earth coverage?
Which of the following is not a Electrothermal propulsion system? Arcjet, ion engine, resistojet
Name a factor perturbing Keplerian orbits around the Earth
State a typical SI range for Solid rocket motorsRemember units, use ^ for powers.
What, approximately, is the total equivalent velocity change required to reach Earth Orbit, including all losses?Remember units, use ^ for powers.
Which particle is the most common constituent of Cosmic Radiation?
Give an example of the type of problems associated with operating a satellite caused by the high vacuum environment
QuestionAnswerNotes
State the definition of emissivity, ε
A satellite in circular earth orbit has a speed of 7.9 kms-1. What -v is required to change its inclination by 30º?Remember units, use ^ for powers.
For which of the following mission tasks are electric propulsion systems suitable? Launch, hohmann transfer impulses, station keeping
Which two factors determine the velocity change produced by a rocket operating with no external forces acting?
Give another reason why an equatorial launch site is preferable.
Name the two orbital parameters that define ‘geostationary‘orbit (not geosynchronous)
Give a reason why an equatorial launch site is preferable.
What does the Acronym TTC stand for?
What type of orbit would you choose for a communications satellite to cover Alaska? a) a sun-synchronous orbit b) a geostationary orbit c) a molniya orbit
Which of the below is the typical launch g load experienced by a satellite? a) 4.5 g b) 2.5 g c) 1.5 g
Which of the following is technically the hardest planet to send a spacecraft to? Mercury, Mars, Jupiter, Venus
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