code: def _get_satellite_z_axis_1950(
      angle_between_sat_spin_and_z_axis,
      angle_between_sat_spin_and_yz_plane,
  ):
      """Get satellite z-axis (spin) in mean of 1950 coordinates."""
      alpha = angle_between_sat_spin_and_z_axis
      delta = angle_between_sat_spin_and_yz_plane
      cos_delta = np.cos(delta)
      return Vector3D(
          x=np.sin(delta),
          y=-cos_delta * np.sin(alpha),
          z=cos_delta * np.cos(alpha),
      )
  
imports: from collections import namedtuple
  import dask.array
  import numba
  import numpy
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 14 for calling a global function with example usage: _get_satellite_z_axis_1950(angle_between_sat_spin_and_z_axis, angle_between_sat_spin_and_yz_plane) and returns: Vector3D