PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/18-02:58:00
G02     74.5           20.3                5.9 +/-    0.94      12.8 +/-    0.94  0.140 / 0.330
G05     45.3           42.6                5.9 +/-    1.03       8.2 +/-    1.03  0.100 / 0.390
G12     180.7          14.2               12.1 +/-    3.43      30.6 +/-    3.43  0.030 / 0.050
G13     112.5          27.0               11.2 +/-    1.39      20.8 +/-    1.39  0.030 / 0.050
G15     153.5          27.3               12.5 +/-    1.19      23.2 +/-    1.19  0.060 / 0.110
G20     227.5          30.9               12.4 +/-    1.34      21.3 +/-    1.34  0.060 / 0.080
G21     286.1          27.9                7.3 +/-    1.51      13.3 +/-    1.51  0.060 / 0.150
G25     218.0          37.1               13.6 +/-    1.38      20.8 +/-    1.38  0.070 / 0.180
G26     314.6          14.3                5.3 +/-    2.07      13.3 +/-    2.07  0.090 / 0.180
G29     340.5          72.2                9.5 +/-    0.66       9.9 +/-    0.66  0.110 / 0.190