PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-18:12:30
G03     209.9          59.0               10.1 +/-    1.04      11.6 +/-    1.04  0.050 / 0.070
G07     254.4          12.8               13.0 +/-    1.90      34.2 +/-    1.90  0.060 / 0.050
G09     308.4          24.5                9.8 +/-    1.54      19.3 +/-    1.54  0.130 / 0.190
G14     106.7          9.9                12.1 +/-    3.02      33.9 +/-    3.02  0.090 / 0.180
G16     104.3          64.2               12.5 +/-    0.97      13.8 +/-    0.97  0.040 / 0.030
G22     187.4          43.5               10.1 +/-    0.97      13.9 +/-    0.97  0.040 / 0.040
G23     329.7          59.0                9.3 +/-    0.54      10.7 +/-    0.54  0.160 / 0.410
G26     56.0           44.9               10.0 +/-    0.94      13.5 +/-    0.94  0.150 / 0.380
G31     57.8           11.6                7.6 +/-    2.16      20.6 +/-    2.16  0.030 / 0.030