UTC(IT)-GPS=-15s

---------------------------------
MJD    x [ns] y [10E-13]
---------------------------------
55166 -32.4   0.1
55167 -24.7  -0.9
55168 -30.5   0.7
55169 -28.6  -0.2
55170 -24.6  -0.5
55171 -18.4  -0.7
55172 -15.5  -0.3
55173 -17.8   0.3
55174 -17.8   0.0
55175 -14.6  -0.4
55176 -11.4  -0.4
55177  -5.5  -0.7
55178  -2.9  -0.3
55179  -2.8   0.0
55180  -5.4   0.3
55181  -5.9   0.1
55182  -6.1   0.0
55183  -5.7   0.0
55184  -6.3   0.1
55185  -8.0   0.2
55186  -6.8  -0.1
55187  -7.1   0.0
55188  -8.4   0.2
55189  -9.2   0.1
55190  -8.8   0.0
55191  -2.3  -0.8
55192  -2.7   0.1
55193  -5.1   0.3
55194  -5.2   0.0
55195  -5.3   0.0
55196  -8.4   0.4