PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-21:42:40
G10     260.3          34.2               11.2 +/-    2.28      18.0 +/-    2.28  0.120 / 0.200
G13     45.3           22.9                6.8 +/-    1.85      14.0 +/-    1.85  0.120 / 0.280
G15     72.3           56.6                9.2 +/-    0.56      10.8 +/-    0.56  0.130 / 0.330
G16     283.3          14.4               10.1 +/-    1.57      25.5 +/-    1.57  0.210 / 0.390
G20     259.5          18.2                4.3 +/-    1.97       9.8 +/-    1.97  0.160 / 0.350
G21     346.7          66.8                9.0 +/-    0.90       9.7 +/-    0.90  0.190 / 0.320
G24     123.8          10.6                7.4 +/-   23.98      20.4 +/-   23.98  0.050 / 0.030
G26     256.6          10.9               12.1 +/-    1.91      33.1 +/-    1.91  0.070 / 0.050
G27     321.2          13.3                6.9 +/-    5.37      17.8 +/-    5.37  0.200 / 0.210
G29     167.5          39.5               10.9 +/-    1.73      16.0 +/-    1.73  0.170 / 0.170