from time import sleep
import numpy as np
from simple_pid import PID
import krpc
conn = krpc.connect()
sc = conn.space_center
vessel = sc.active_vessel
target = sc.target_vessel

mj = conn.mech_jeb
sa = mj.smart_ass
reference_frame = sc.ReferenceFrame.create_relative(target.reference_frame, rotation=(1., 0., 0., 0.))
conn.drawing.add_direction((0, 1, 0), reference_frame)