RedOnion

[WIP] OrbitInfo

Orbit/patch parameters.

Instance Properties:

• native: Orbit - [Unsafe] KSP API
• body: SpaceBody - Orbited body.
• encounter: bool - [WIP] This orbit-patch ends by encounter with another celestial body.
• escape: bool - [WIP] This orbit-patch ends by escaping the SOI.
• next: OrbitInfo - Next patch if there is some transition (null otherwise).
• startTime: TimeStamp - Time of start of this patch, if it is continuation, time.now otherwise (can be one tick old - 0.02s in the past).
• endTime: TimeStamp - Time of end of this patch, if there is transition. endTime = startTime + period for current orbit without a transition.
• period: TimeDelta - Period of the orbit in seconds.
• timeToAp: TimeDelta - Eta to apoapsis in seconds. timeAtAp - time.now
• timeToPe: TimeDelta - Eta to periapsis in seconds. timeAtPe - time.now
• timeAtAp: TimeStamp - Time at apoapsis. timeToAp + time.now
• timeAtPe: TimeStamp - Time at periapsis. timeToPe + time.now
• eccentricity: double - Eccentricity of current orbit. [0, +inf)
• inclination: double - Inclination of current orbit. [0, 180)
• semiMajorAxis: double - Semi-major axis of current orbit.
• semiMinorAxis: double - Semi-minor axis of current orbit.
• apoapsis: double - Height above ground of highest point of current orbit. apocenter - body.radius
• periapsis: double - Height above ground of lowest point of current orbit. pericenter - body.radius
• apocenter: double - Highest distance between center of orbited body and any point of current orbit. (1 + eccentricity) * semiMajorAxis
• pericenter: double - Lowest distance between center of orbited body and any point of current orbit. (1 - eccentricity) * semiMajorAxis
• trueAnomaly: double - Angle in degrees between the direction of periapsis and the current position. Zero at periapsis, 180 at apoapsis.
• meanAnomaly: double - Angle in degrees between the direction of periapsis and the current position extrapolated on circular orbit.
• lan: double - Longitude of ascending node.
• argumentOfPeriapsis: double - Argument of periapsis. Angle from ascending node to periapsis.
• aop: double - Argument of periapsis. Angle from ascending node to periapsis.

Instance Methods:

• positionAt(): Vector, time TimeStamp
  • Predicted position at specified time. Does not include the movement of celestial bodies. See orbit.png.
• velocityAt(): Vector, time TimeStamp
  • Predicted velocity at specified time. Does not include the movement of celestial bodies.