PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-02:42:50
G01     260.7          39.1                8.1 +/-    1.66      12.0 +/-    1.66  0.070 / 0.070
G03     316.5          35.0                3.7 +/-    0.87       5.8 +/-    0.87  0.070 / 0.080
G10     133.7          10.4                6.8 +/-    2.46      18.8 +/-    2.46  0.040 / 0.070
G11     242.8          16.1                8.2 +/-    2.40      19.9 +/-    2.40  0.040 / 0.070
G14     51.1           46.2                5.4 +/-    1.25       7.2 +/-    1.25  0.070 / 0.040
G18     225.8          33.3                8.6 +/-    1.63      14.1 +/-    1.63  0.040 / 0.050
G22     311.5          58.0                5.9 +/-    1.23       6.8 +/-    1.23  0.130 / 0.360
G25     44.3           12.6                2.8 +/-    2.86       7.4 +/-    2.86  0.130 / 0.390
G31     45.0           66.0                4.9 +/-    0.73       5.3 +/-    0.73  0.070 / 0.130
G32     71.1           26.8                3.5 +/-    1.00       6.7 +/-    1.00  0.090 / 0.130