TSTI Admin No Comments October 7, 2024

Law of Universal Gravitation

Newton’s Law of Universal GravitationNewton’s Law of Universal GravitationNewton's Law of Universal Gravitation states that the force of gravity between two bodies is directly proportional to the product of their two masses and inversely proportional to the square of the distance between them. More states that the forceAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More of gravityA projectile with a prescribed path that cannot be altered after it has burned its propellant and the laws of ballistics govern its course. When gravity is the only force on it, its path is elliptical. More between two bodies is directly proportional to the product of their two masses and inversely proportional to the square of the distance between them. More states that the forceAn object’s increasing speedHow fast an object's speed is changing when we apply a force to it. During acceleration, speed increases. During deceleration, speed decreases. More toward Earth’s center, caused by the forceAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More of […]

TSTI Admin No Comments June 20, 2024

lift

A forceAn object’s increasing speed toward Earth’s center, caused by the forceAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More of gravityA projectile with a prescribed path that cannot be altered after it has burned its propellant and the laws of ballistics govern its course. When gravity is the only force on it, its path is elliptical. More (the force of attractionAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More between two objects). More on a re-entryThe reference frameThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More used to analyze a space vehicle’s motionA rotating object’s spin rate. We use the right-hand rule to determine its direction. More after leaving orbitThe oval-shaped path that a spacecraft follows. Orbits come in various shapes and sizes, but each one has a purpose: to let the spacecraft do its job. Higher orbits require more propellant to get a spacecraft there. More until it lands. Its originDefines a physically identifiable starting point for the coordinate system. More is at the vehicle’s center of mass at the beginning of re-entryThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More. More […]

TSTI Admin No Comments June 20, 2024

lifting entry

Accounting for the lifting forceAn object’s increasing speed toward Earth’s center, caused by the force of gravity (the forceAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More of attractionAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More between two objects). More experienced by our re-entryThe reference frameThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More used to analyze a space vehicle’s motionA rotating object’s spin rate. We use the right-hand rule to determine its direction. More after leaving orbitThe oval-shaped path that a spacecraft follows. Orbits come in various shapes and sizes, but each one has a purpose: to let the spacecraft do its job. Higher orbits require more propellant to get a spacecraft there. More until it lands. Its originDefines a physically identifiable starting point for the coordinate system. More is at the vehicle’s center of mass at the […]

TSTI Admin No Comments April 6, 2026

manage

Identify risks while there is still time to react and put in place mitigation strategies to minimize or eliminate risks. Risk is defined in two dimensions, probability of occurrence and consequence. Decompose top-level requirements to lower-level requirements in order to trace them and note changes. Pay particular attention to interfaces.

TSTI Admin No Comments October 7, 2024

micrometeoroids

Small pieces of solid material found naturally in the space environment.

TSTI Admin No Comments April 6, 2026

Mission Planning and Analysis

Planning mission timelines and sequencing of events, analyzing trade-offs between competing technical options and, defining flight rulesDetailed procedures for normal and contingency operations that operators and engineers created during the mission designDesign is an intricate process involving reviewing constraints, identifying and characterizing the mission subject, deriving the payload and orbital requirements, determining spacecraft mass, power and other detailed design requirements, identifying potential launch vehicles, deriving operations systems requirements and iterating. More, manufacture, and tests. They describe how every subsystemThe bus provides "housekeeping" functions necessary to make the payload work. Includes various subsystems that produce/distribute electrical power, maintain correct temperature, process and store data, communicate with other spacecraft and Earth-bound operators, control the spacecraft's orientation, and hold everything together. More should work and list the steps to take in every conceivable situation to save the […]

TSTI Admin No Comments October 7, 2024

Newton’s 2nd Law

Newton’s Second Law of Motion states that the timeThe time between successive passages of the Sun overhead, which is from noon one day to noon the next dayThe time between successive passages of the Sun overhead, which is from noon one day to noon the next day. Because Earth’s orbit around the Sun is slightly elliptical, this time varies slightly during a year. More. Because Earth’s orbit around the SunWe use the angle of incidence, θ, to determine how much solar energy hits a solar panel. This angle lies between a line perpendicular to the cell and the Sun line. More is slightly elliptical, this timeThe time between successive passages of the Sun overhead, which is from noon one day to noon the next day. Because Earth’s orbit around the Sun is slightly elliptical, this time varies slightly during a year. More varies slightly during a year. More rate of change of an object’s momentum equals the applied […]

TSTI Admin No Comments April 6, 2026

operations concept

How the mission elements will work together.

TSTI Admin No Comments April 10, 2026

orbit

The oval-shaped path that a spacecraft follows. OrbitsThe study of the moving objects under the influence of gravityA projectile with a prescribed path that cannot be altered after it has burned its propellant and the laws of ballistics govern its course. When gravity is the only force on it, its path is elliptical. More from another body. Astrodynamicists designDesign is an intricate process involving reviewing constraints, identifying and characterizing the mission subject, deriving the payload and orbital requirements, determining spacecraft mass, power and other detailed design requirements, identifying potential launch vehicles, deriving operations systems requirements and iterating. More orbitsThe study of the moving objects under the influence of gravity from another body. Astrodynamicists design orbits and study how gravity affects them. More and study how gravity affects them. More come in various shapes and sizes, but each one has a purpose: to let the spacecraft do its job. Higher orbitsThe study of the […]

TSTI Admin No Comments October 7, 2024

origin

Defines a physically identifiable starting pointThe job of the attitude determination and control subsystemThe job of the attitude determination and control subsystem (ADCS) is to keep its spacecraft pointed in the right direction. More (ADCS) is to keep its spacecraft pointed in the right direction. More for the coordinate systemA frame of reference that engineers use as a foundation for describing an object’s motion. Coordinate systems have a center point (origin), two or three axis lines that start at the origin, and one of the axis lines designated as the principal direction. More.