Orbital Mechanics Exam Review

General Orbit: rmin is called the ___________

General Orbit: rmax is called the ___________

Heliocentric Orbit: rmin is called the ___________

Heliocentric Orbit: rmax is called the ___________

Geocentric Orbit: rmin is called the ___________

Geocentric Orbit: rmax is called the ___________

The prefix for Orbit Type rmin is _____

The prefix for Orbit Type rmax is _____

Energy Equation of an Orbit

The Standard Gravitational Parameter (µ) ==

The semi-major axis of an Orbit is represented by the variable ___

The equation for the velocity of a spacecraft in orbit is called the _______________

The Vis-Viva Equation ==

Kepler's Third Law Equation for the Period of an Orbit (T) ==

The simplest method by which a spacecraft can alter its orbit is called the _________________

The Hohmann Transfer was developed in _____ by __________________

The path of traversal from orbit a1 to orbit a2 is called the ________________

The Semi-Major Axis of the Transfer Elllipse (a) ==

The Hohmann Transfer requires ______ Impulses to Accomplish

The first Impulse of a Hohmann transfer takes place at the __________ of the ______________

The second Impulse of a Hohmann transfer takes place at the __________ of the ______________

Velocity at the Periapsis of a Hohmann Transfer (vpte) ==

Velocity at the Apoapsis of a Hohmann Transfer (vate) ==

The first impulse of a Hohmann Transfer (Δv1) ==

Period of a Hohmann Transfer ==

Radius of Earth (Re) ==

Mass of Earth (Me) ==

Height (h) is the height above __________

The Radius of Orbit around Earth (r) ==

When atmospheric particles cause drag, which decreases satellite speed and altitude, it can be labeled as a process called __________Eccentricity

The Von Karman Line sits at _______ km above sea level

When a satellite is in High Earth Orbit (HEO), it appears to be moving __________ in the sky, which is in the direction ____________

The constant defining the shape of the conic section of an orbit is _________

Orbital Elements: The angle between the plane of reference and the plane of orbit is the __________

Orbital Elements: The angle from the reference direction to the intersection of planes is called the ___________

Orbital Elements: The angle between the semi-major axis of the orbital plane and the intersection of planes is called the ____________

An orbit coplanar to the equator is called _________

The orbital plane of the earth around the sun is called _________

The Angle between the Equatorial and Eclipitcal Planes ==2r

What is it called when a plane of orbit is rotated about its center?

When a plane of orbit is inclined, its _______________ Vector must also shiftsqrt

The change in Angular Momentum of an Inclined Orbital Plane (ΔH) == (Equation 1)

The change in Angular Momentum of an Inclined Orbital Plane (ΔH) == (Equation 2)

Eccentricity (e) ==

Orbital Elements: The point at which the orbital planes intersect is called the ____________

Orbital Elements: The line of all intersections of orbital planes (Ascending Nodes) is called the ___________Cos

Angular Momentum Vector (H) ==

The Node Vector (n) ==

Inclination (i) ==

Longtidue of Ascending Node (omega) ==

Argument of Periapsis (w) ==Paramter

True Anomaly (v) ==

Sometimes, a Gravitational __________ P is given

Parameter (P) == (Equation 1)

Paramter (P) == (Equation 2)

Given a Parameter (P), radius of a Circular Orbit ==

Rocket Engines utilize both the ____ and the ______, independent of the _______

When only the fuel is carried onboard and the surrounding atmosphere is used at the oxidizer, we call this kind of propulsion ___________

When both the fuel and oxidizer is onboard, we call this kind of propulsion __________

Newton's First Law:

Newton's Second Law:

Newton's Third Law:

Solid Propellant is housed in the _________________

Solid Propellant is always in the form of a __________

The surface of the Solid Propellant Grain must be _________, or risk of ___________ and __________ is heightened

Liquid Fuel is stored in ________ next to the _________ tank that funnels liquid into a combustion chamber

The downsides to liquid fuel are that it is highly _______ and difficult to ________

In Rocket Kinetics, b is the symbol for ________

In Rocket Kinetics, c is the symbol for ________

The Rocket Equation ==

The rocket nozzle that is shaped like Mrs. Fogarty is called the _________

The change in Velocity due to Loss of Mass (delta V) ==

When does gravity and drag have the most effect on a rocket?

Mass Ratio (Z) ==

Payload Ratio ( lambda ) ==

Structural Coefficient (Epsilon) ==