Class in Zendir.Messages | Inherits from Message
Declaration
class SpacecraftStateMessage;Description
Message describing the current state of a spacecraft. This can define all parameters on the spacecraft at a point in time, relative to the body or inertial frame. The body frame (B) is the spacecraft’s frame and the center of mass frame (C) is the center of mass of the spacecraft, including all components.
Properties
| Declared | Description |
|---|---|
| Acceleration_BN_N | Current acceleration vector in the inertial frame |
| NonConservativeAcceleration_BN_B | Current Spacecraft non-conservative body frame acceleration in the bodyframe. |
| NumMRPSwitches | Number of times that MRPs have switched due to the a full rotation. |
| Omega_BN_B | Current angular velocity in the body frame |
| OmegaDot_BN_B | Current angular acceleration in the body frame |
| OrbitalEnergyContribution | Contribution of the state effectors to the total potential energy. |
| Position_BN_N | Current position vector in the inertial frame |
| Position_CN_N | Current position of the center of mass in the inertial frame |
| RotationalAngularMomentum_CN_B | Contribution of the state effector to total rotational angular momentumof the center of mass relative to the body frame. |
| RotationalEnergyContribution | Contribution of the state effectors to the total rotational energy. |
| Sigma_BN | Current attitude in MRP in the inertial frame |
| TotalDeltaVelocity_BN_B | Accumulated DV (delta-velocity) of body frame in body frame coordinates |
| TotalDeltaVelocity_CN_B | Accumulated DV (delta-velocity) of center of mass in body frame coordinates |
| TotalOrbitalAngularMomentum_BN_N | Total orbital angular momentum about the body relative to theinertial frame. |
| TotalOrbitalEnergy | Total orbital kinetic energy of the body over the simulation. |
| TotalRotationalAngularMomentum_CN_N | Total rotational angular momentum about the center of mass relative tothe inertial frame. |
| TotalRotationalEnergy | Total rotational energy of the body. |
| Velocity_BN_N | Current velocity vector in the inertial frame |
| Velocity_CN_N | Current velocity of the center of mass in the inertial frame |