PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-19:12:30
G02     320.9          80.1                8.7 +/-    0.67       8.8 +/-    0.67  0.050 / 0.110
G05     165.5          31.2               11.8 +/-    1.83      20.2 +/-    1.83  0.040 / 0.110
G06     41.5           40.6                7.8 +/-    0.39      11.2 +/-    0.39  0.040 / 0.040
G12     313.6          72.8                6.4 +/-    0.83       6.7 +/-    0.83  0.030 / 0.030
G17     84.4           12.5               10.0 +/-    2.52      26.4 +/-    2.52  0.030 / 0.030
G19     71.1           31.2                9.6 +/-    0.56      16.4 +/-    0.56  0.040 / 0.040
G24     228.8          24.0                9.8 +/-    2.17      19.7 +/-    2.17  0.080 / 0.170
G25     317.5          27.2                5.1 +/-    1.58       9.5 +/-    1.58  0.070 / 0.140