ostk.astrodynamics.guidance_law.ConstantThrust

class ConstantThrust(

self: ostk.astrodynamics.guidance_law.ConstantThrust,

thrust_direction: ostk.astrodynamics.trajectory.LocalOrbitalFrameDirection,

)

Bases: GuidanceLaw

Constant Thrust, Constant Direction dynamics.

Constructor.

Parameters:

thrust_direction (LocalOrbitalFrameDirection) -- The thrust direction.

Methods

calculate_thrust_acceleration_at	Compute the acceleration due to constant thrust.
get_local_thrust_direction	Get the local thrust direction.
get_name	Get the name of the guidance law.
intrack	Create a constant thrust in the in-track direction.

calculate_thrust_acceleration_at(

self: ostk.astrodynamics.guidance_law.ConstantThrust,

instant: ostk.physics.time.Instant,

position_coordinates: numpy.ndarray[numpy.float64[3, 1]],

velocity_coordinates: numpy.ndarray[numpy.float64[3, 1]],

thrust_acceleration: ostk.core.type.Real,

output_frame: ostk.physics.coordinate.Frame,

) → numpy.ndarray[numpy.float64[3, 1]]

Compute the acceleration due to constant thrust.

Parameters:

• instant (Instant) -- The instant of the state vector.

• position_coordinates (numpy.ndarray) -- The position coordinates.

• velocity_coordinates (numpy.ndarray) -- The velocity coordinates.

• thrust_acceleration (float) -- The thrust acceleration magnitude.

• output_frame (Frame) -- The frame the acceleration will be expressed in.

Returns:

The contribution of the constant thrust to the state vector.

Return type:

numpy.ndarray

get_local_thrust_direction(

self: ostk.astrodynamics.guidance_law.ConstantThrust,

) → ostk.astrodynamics.trajectory.LocalOrbitalFrameDirection

Get the local thrust direction.

Returns:

The local thrust direction.

Return type:

LocalOrbitalFrameDirection

get_name(self: ostk.astrodynamics.GuidanceLaw) → ostk.core.type.String

Get the name of the guidance law.

Returns:

The name of the guidance law.

Return type:

str

static intrack(

velocity_direction: bool = True,

) → ostk.astrodynamics.guidance_law.ConstantThrust

Create a constant thrust in the in-track direction.

Parameters:

• satellite_system (SatelliteSystem) -- The satellite system.

• velocity_direction (bool, optional) -- If True, the thrust is applied in the velocity direction. Otherwise, it is applied in the opposite direction.

• frame (Frame, optional) -- The reference frame.

Returns:

The constant thrust.

Return type:

ConstantThrust