PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-03:58:00
G02     82.7           13.8                6.1 +/-    0.74      15.5 +/-    0.74  0.050 / 0.080
G05     44.7           32.8                3.9 +/-    1.26       6.4 +/-    1.26  0.050 / 0.070
G13     101.5          32.5                9.2 +/-    0.62      15.4 +/-    0.62  0.090 / 0.160
G15     146.1          36.5                9.3 +/-    0.78      14.3 +/-    0.78  0.090 / 0.160
G20     235.8          45.2                9.6 +/-    1.18      12.9 +/-    1.18  0.110 / 0.200
G21     295.0          34.3                7.8 +/-    0.92      12.5 +/-    0.92  0.120 / 0.210
G25     211.0          27.9                9.0 +/-    1.38      16.5 +/-    1.38  0.020 / 0.030
G26     306.1          18.6                8.6 +/-    1.73      19.7 +/-    1.73  0.020 / 0.040
G29     358.4          83.5                5.8 +/-    0.48       5.8 +/-    0.48  0.060 / 0.120