PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-21:12:30
G10     248.2          24.9               13.5 +/-    1.19      26.4 +/-    1.19  0.120 / 0.320
G13     56.1           31.2                8.4 +/-    1.71      14.4 +/-    1.71  0.130 / 0.430
G15     100.2          59.5                9.6 +/-    1.17      11.0 +/-    1.17  0.050 / 0.050
G16     296.7          16.3                9.1 +/-    1.63      22.0 +/-    1.63  0.050 / 0.040
G20     249.8          9.3                 4.7 +/-    4.11      13.4 +/-    4.11  0.060 / 0.130
G21     328.8          57.3                9.1 +/-    0.62      10.6 +/-    0.62  0.060 / 0.130
G26     268.9          16.9               12.9 +/-    2.21      30.7 +/-    2.21  0.030 / 0.030
G29     164.4          54.6                9.5 +/-    0.47      11.4 +/-    0.47  0.030 / 0.040