UTC(IT)-GPS=-15s

---------------------------------
MJD    x [ns] y [10E-13]
---------------------------------
55136 -25.2  -0.5
55137 -25.4   0.0
55138 -22.4  -0.4
55139 -18.3  -0.5
55140 -15.5  -0.3
55141  -8.8  -0.8
55142 -11.5   0.3
55143 -11.3   0.0
55144 -12.2   0.1
55145 -13.2   0.1
55146 -22.1   1.0
55147 -24.3   0.3
55148 -16.4  -0.9
55149 -16.6   0.0
55150 -17.6   0.1
55151 -17.5   0.0
55152 -24.2   0.8
55153 -24.1   0.0
55154 -18.8  -0.6
55155 -19.2   0.0
55156 -20.6   0.2
55157 -30.4   1.1
55158 -20.0  -1.2
55159 -21.6   0.2
55160 -25.9   0.5
55161 -23.3  -0.3
55162 -24.0   0.1
55163 -25.6   0.2
55164 -24.4  -0.1
55165 -31.4   0.8