 ---
 angular velocity
            lat.n    lon.e      rate (deg./m.y.
 sw  -eu    -36.688  -29.929  1.4181
  
 covariance matrix (rad2/m.y.2 e-10
  130659.3  -65566.6 -227953.7
  -65566.6   35700.9  116235.7
 -227953.7  116235.7  402751.2
  
