PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-11:13:00
G08     293.8          21.2                5.1 +/-    1.07      10.9 +/-    1.07  0.060 / 0.070
G10     15.4           63.1                3.7 +/-    0.41       4.1 +/-    0.41  0.060 / 0.090
G14     233.2          46.9                6.1 +/-    0.66       8.0 +/-    0.66  0.110 / 0.390
G18     317.7          12.2                0.4 +/-    6.25       1.0 +/-    6.25  0.150 / 0.250
G21     148.2          35.7                4.5 +/-    1.10       7.1 +/-    1.10  0.040 / 0.100
G24     52.9           24.0                3.5 +/-    0.99       7.0 +/-    0.99  0.040 / 0.090
G27     249.5          29.4                5.0 +/-    2.04       8.9 +/-    2.04  0.090 / 0.100
G31     182.1          11.0               -1.4 +/-   14.70      -3.9 +/-   14.70  0.090 / 0.120
G32     257.4          72.1                5.5 +/-    1.02       5.8 +/-    1.02  0.030 / 0.030