PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-15:57:40
G01     253.6          36.3               10.3 +/-    1.92      16.0 +/-    1.92  0.050 / 0.040
G03     316.2          46.5               10.1 +/-    0.81      13.4 +/-    0.81  0.040 / 0.030
G11     241.7          13.8                9.0 +/-    1.96      23.0 +/-    1.96  0.070 / 0.090
G14     56.4           43.9               10.0 +/-    1.37      13.7 +/-    1.37  0.060 / 0.080
G22     305.6          67.1                8.6 +/-    0.30       9.2 +/-    0.30  0.120 / 0.190
G23     286.1          20.2                9.6 +/-    1.96      21.1 +/-    1.96  0.190 / 0.180
G25     41.8           11.8                7.8 +/-    1.00      21.0 +/-    1.00  0.040 / 0.030
G31     41.6           59.2               10.0 +/-    0.48      11.5 +/-    0.48  0.040 / 0.030
G32     76.2           23.2                7.9 +/-    1.54      16.2 +/-    1.54  0.080 / 0.070