PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-02:27:50
G01     249.0          34.3               11.0 +/-    1.05      17.7 +/-    1.05  0.090 / 0.130
G03     315.6          43.4                6.1 +/-    1.88       8.4 +/-    1.88  0.060 / 0.110
G11     234.7          11.9                9.2 +/-    3.20      24.5 +/-    3.20  0.030 / 0.040
G14     63.1           38.7                5.7 +/-    0.87       8.5 +/-    0.87  0.030 / 0.040
G16     165.5          17.5                9.4 +/-    1.99      21.9 +/-    1.99  0.060 / 0.240
G22     303.3          66.6                6.8 +/-    0.74       7.3 +/-    0.74  0.060 / 0.240
G23     287.2          19.0                9.0 +/-    1.46      20.4 +/-    1.46  0.030 / 0.050
G26     140.2          37.7               11.0 +/-    1.14      16.6 +/-    1.14  0.030 / 0.040
G31     39.5           60.8                6.0 +/-    0.62       6.8 +/-    0.62  0.060 / 0.110
G32     77.3           24.6                6.8 +/-    1.18      13.3 +/-    1.18  0.060 / 0.130