PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/30-17:12:30
G01     306.3          33.7                6.2 +/-    1.81      10.2 +/-    1.81  0.110 / 0.180
G10     106.9          39.8                8.0 +/-    0.83      11.6 +/-    0.83  0.060 / 0.110
G11     283.1          27.4                6.6 +/-    0.92      12.3 +/-    0.92  0.060 / 0.040
G14     356.4          66.8                5.7 +/-    0.44       6.2 +/-    0.44  0.070 / 0.050
G22     310.2          27.2                6.5 +/-    1.60      12.1 +/-    1.60  0.180 / 0.100
G25     81.7           17.0                8.6 +/-    1.14      20.5 +/-    1.14  0.090 / 0.100
G31     165.7          66.2                7.2 +/-    0.48       7.8 +/-    0.48  0.040 / 0.030
G32     37.5           51.5                6.6 +/-    1.04       8.2 +/-    1.04  0.040 / 0.030