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ostk.astrodynamics.trajectory.model.Nadir¶

class Nadir( self: ostk.astrodynamics.trajectory.model.Nadir, orbit: ostk.astrodynamics.trajectory.Orbit, step_size: ostk.physics.time.Duration = 00.010.000.000, )¶

Bases: Model

Nadir trajectory model.

This model represents a trajectory that follows the nadir direction of an orbit.

Construct a Nadir object from an orbit.

Parameters:

orbit (Orbit) -- The orbit.
step_size (Duration) -- The step size for the trajectory. Defaults to 1e-2 seconds.

Returns:

The Nadir object.

Return type:

Methods

`calculate_state_at`	Calculate the state at a given instant.
`calculate_states_at`	Calculate the states at given instants.
`get_orbit`	Get the orbit of the nadir model.
`get_step_size`	Get the step size of the nadir model.
`is_defined`	Check if the model is defined.

calculate_state_at( self: ostk.astrodynamics.trajectory.model.Nadir, instant: ostk.physics.time.Instant, ) → ostk.astrodynamics.trajectory.State¶

Calculate the state at a given instant.

Parameters:: instant (Instant) -- The instant.
Returns:: The state at the given instant.
Return type:: State

calculate_states_at( self: ostk.astrodynamics.trajectory.Model, instants: list[ostk.physics.time.Instant], ) → list[ostk.astrodynamics.trajectory.State]¶

Calculate the states at given instants. It can be more performant than looping calculate_state_at for multiple instants.

@param instants The instants.

Returns:: The states at the given instants.
Return type:: Array<State>

get_orbit( self: ostk.astrodynamics.trajectory.model.Nadir, ) → ostk.astrodynamics.trajectory.Orbit¶

Get the orbit of the nadir model.

Returns:: The orbit of the nadir model.
Return type:: Orbit

get_step_size( self: ostk.astrodynamics.trajectory.model.Nadir, ) → ostk.physics.time.Duration¶

Get the step size of the nadir model.

Returns:: The step size of the nadir model.
Return type:: Duration

is_defined(self: ostk.astrodynamics.trajectory.model.Nadir) → bool¶

Check if the model is defined.

Returns:: True if the model is defined, False otherwise.
Return type:: bool