Time when the sun is over a specific place from one day to the next
What is a solar day
100
Consist of launching into an orbit with an inclination equal to the launch site's latitude then doing a maneuver to the desired orbit
What is a plane change maneuver
100
Has a period of 90 - 120 minutes with an altitude up to 1,500 km. The missions include the ISS, Earth sensing, reconnaissance, and astronomy
What is low earth orbit (LEO)
100
Factors impacting a launch
What is Space policy, cleared area not in vicinity of people, launch windows, and the specified orbit
100
Greek philosopher believed in the geocentric point of view and that the paths of the stars must be circular around the earth. He predicted that heavy objects fall faster than lighter objects.
Who is Aristotle
200
Measure of the angle between a longitude line and the vernal equinox
What is a sidereal day
200
Launch site latitude is equal to the desired inclination
What is one launch opportunity
200
This is a special LEO orbit with an inclination of approximately 98 degrees and allows a satellite to pass over the same spot on earth at the same time each day.
What is a sun synchronous orbit
200
This phase uses high velocity to move through dense atmosphere
What is Phase 1, vertical ascent
200
Developed the idea of elliptical orbits to help explain strange behaviors, such as the orbit of Mars. He also calculated the orbit of Mars because it was very eccentric.
Who Johannes Kepler
300
Time since the vernal equinox last passed over local longitude
What is the local sidereal time (LST)
300
Launch site latitude is greater than the desired inclination
What is no launch opportunity
300
It is considered medium earth orbit (MEO) with a period of approximately 12 hours and its mission includes navigation.
What is a semi-synchronous orbit.
300
This phase uses a slight positive maneuver to gain velocity in a horizontal direction
What is Phase 2, pitch over
300
States that the orbits of the planets are ellipses with the Sun at one focus.
What is Kepler's 1st Law of Motion
400
Zulu time
What is Greenwich Mean Time (GMT)
400
Launch site latitude is less than to the desired inclination
What is two launch opportunities
400
This is orbit provides constant viewing, broad coverage, and large footprint. It has a period of approximately 24 hours and its missions includes communication and remote sensing.
What is geosynchronous earth orbit (GEO)
400
This phase allows gravity pulling a launch vehicle into a horizontal direction
What is Phase 3, gravity turn
400
States that orbits of the planets sweep out equal areas in equal time.
What is Kepler's 2nd Law of Motion
500
Needs the launch site latitude and orbital plane to intersect at least once
What is a launch window
500
This is important because an object cannot launch directly into a lower inclination
What is launch site latitude
500
This is a special highly elliptical orbit (HEO) with a specific inclination of 63.4 degrees. It has a long dwell time (approximately 8 hours of a 12 hour orbit) over northern latitudes
What is a molniya
500
This phase is above earth's atmosphere and accelerates with necessary velocity to attain orbit
What is Phase 4, vacuum
500
States that the square of the period is proportional to the cube of the mean distance between the sun and the planet.