# Node¶

class Node

Represents a maneuver node. Can be created using SpaceCenter.Control.add_node().

prograde

The magnitude of the maneuver nodes delta-v in the prograde direction, in meters per second.

Attribute: Can be read or written number
normal

The magnitude of the maneuver nodes delta-v in the normal direction, in meters per second.

Attribute: Can be read or written number
radial

The magnitude of the maneuver nodes delta-v in the radial direction, in meters per second.

Attribute: Can be read or written number
delta_v

The delta-v of the maneuver node, in meters per second.

Attribute: Can be read or written number

Note

Does not change when executing the maneuver node. See SpaceCenter.Node.remaining_delta_v.

remaining_delta_v

Gets the remaining delta-v of the maneuver node, in meters per second. Changes as the node is executed. This is equivalent to the delta-v reported in-game.

Attribute: Read-only, cannot be set number
burn_vector([reference_frame = None])

Returns the burn vector for the maneuver node.

Parameters: reference_frame (SpaceCenter.ReferenceFrame) – The reference frame that the returned vector is in. Defaults to SpaceCenter.Vessel.orbital_reference_frame. A vector whose direction is the direction of the maneuver node burn, and magnitude is the delta-v of the burn in meters per second. Tuple of (number, number, number)

Note

Does not change when executing the maneuver node. See SpaceCenter.Node.remaining_burn_vector().

remaining_burn_vector([reference_frame = None])

Returns the remaining burn vector for the maneuver node.

Parameters: reference_frame (SpaceCenter.ReferenceFrame) – The reference frame that the returned vector is in. Defaults to SpaceCenter.Vessel.orbital_reference_frame. A vector whose direction is the direction of the maneuver node burn, and magnitude is the delta-v of the burn in meters per second. Tuple of (number, number, number)

Note

Changes as the maneuver node is executed. See SpaceCenter.Node.burn_vector().

ut

The universal time at which the maneuver will occur, in seconds.

Attribute: Can be read or written number
time_to

The time until the maneuver node will be encountered, in seconds.

Attribute: Read-only, cannot be set number
orbit

The orbit that results from executing the maneuver node.

Attribute: Read-only, cannot be set SpaceCenter.Orbit
remove()

Removes the maneuver node.

reference_frame

The reference frame that is fixed relative to the maneuver node’s burn.

• The origin is at the position of the maneuver node.
• The y-axis points in the direction of the burn.
• The x-axis and z-axis point in arbitrary but fixed directions.
Attribute: Read-only, cannot be set SpaceCenter.ReferenceFrame
orbital_reference_frame

The reference frame that is fixed relative to the maneuver node, and orientated with the orbital prograde/normal/radial directions of the original orbit at the maneuver node’s position.

• The origin is at the position of the maneuver node.
• The x-axis points in the orbital anti-radial direction of the original orbit, at the position of the maneuver node.
• The y-axis points in the orbital prograde direction of the original orbit, at the position of the maneuver node.
• The z-axis points in the orbital normal direction of the original orbit, at the position of the maneuver node.
Attribute: Read-only, cannot be set SpaceCenter.ReferenceFrame
position(reference_frame)

The position vector of the maneuver node in the given reference frame.

Parameters: reference_frame (SpaceCenter.ReferenceFrame) – The reference frame that the returned position vector is in. The position as a vector. Tuple of (number, number, number)
direction(reference_frame)

The direction of the maneuver nodes burn.

Parameters: reference_frame (SpaceCenter.ReferenceFrame) – The reference frame that the returned direction is in. The direction as a unit vector. Tuple of (number, number, number)