PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-04:12:50
G05     48.9           15.9                3.0 +/-    0.87       7.4 +/-    0.87  0.100 / 0.370
G10     235.9          11.9                6.9 +/-    3.70      18.6 +/-    3.70  0.140 / 0.300
G13     76.6           36.6                6.7 +/-    0.48      10.4 +/-    0.48  0.090 / 0.230
G15     124.8          52.0               10.0 +/-    0.47      12.3 +/-    0.47  0.080 / 0.360
G16     313.9          12.7                7.8 +/-    1.30      20.5 +/-    1.30  0.170 / 0.310
G20     257.2          57.2                8.1 +/-    0.56       9.4 +/-    0.56  0.100 / 0.310
G21     312.4          46.4                5.8 +/-    0.88       7.7 +/-    0.88  0.110 / 0.340
G25     200.2          11.5                6.6 +/-    2.02      17.9 +/-    2.02  0.130 / 0.320
G26     286.5          20.9                6.9 +/-    1.82      14.9 +/-    1.82  0.040 / 0.070
G29     155.8          73.6               11.3 +/-    0.87      11.7 +/-    0.87  0.060 / 0.090