code: def vcrss(v1, v2):
      
      v1 = stypes.toDoubleVector(v1)
      v2 = stypes.toDoubleVector(v2)
      vout = stypes.emptyDoubleVector(3)
      libspice.vcrss_c(v1, v2, vout)
      return stypes.cVectorToPython(vout)
docs: Compute the cross product of two 3-dimensional vectors.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/vcrss_c.html
  
      :param v1: Left hand vector for cross product. 
      :type v1: 3-Element Array of floats
      :param v2: Right hand vector for cross product. 
      :type v2: 3-Element Array of floats
      :return: Cross product v1 x v2.
      :rtype: 3-Element Array of floats