 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -sc    -32.857  -30.491  1.3560
  
 covariance matrix (rad2/m.y.2 e-10
  130614.7  -65680.5 -228360.2
  -65680.5   35910.3  116873.5
 -228360.2  116873.5  402832.9
  
