PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-17:42:50
G03     209.8          59.4               18.4 +/-    1.68      21.0 +/-    1.68  0.250 / 0.330
G07     254.0          12.4               13.3 +/-    1.71      35.3 +/-    1.71  0.180 / 0.310
G09     308.1          24.1               11.3 +/-    1.20      22.5 +/-    1.20  0.040 / 0.070
G14     106.2          10.5               14.4 +/-    2.16      39.8 +/-    2.16  0.050 / 0.070
G16     105.4          64.0               15.2 +/-    0.81      16.7 +/-    0.81  0.040 / 0.030
G22     187.3          43.8               11.6 +/-    0.67      15.9 +/-    0.67  0.030 / 0.040
G23     329.5          58.8               12.0 +/-    0.40      13.8 +/-    0.40  0.210 / 0.240
G31     57.5           11.8               11.0 +/-    1.19      29.4 +/-    1.19  0.160 / 0.290