PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-10:27:50
G01     292.2          39.8                7.7 +/-    8.22      11.2 +/-    8.22  0.040 / 0.040
G03     311.9          17.7                5.9 +/-    1.47      13.7 +/-    1.47  0.030 / 0.050
G10     119.0          29.6                7.1 +/-    1.80      12.6 +/-    1.80  0.050 / 0.070
G11     267.4          26.0                5.4 +/-    1.68      10.3 +/-    1.68  0.040 / 0.060
G14     13.9           62.1                5.0 +/-    1.16       5.6 +/-    1.16  0.070 / 0.070
G18     255.6          47.8                7.2 +/-    6.34       9.3 +/-    6.34  0.050 / 0.080
G22     314.5          41.9                5.0 +/-    0.67       7.0 +/-    0.67  0.210 / 0.230
G25     68.5           19.0                2.7 +/-    2.12       6.0 +/-    2.12  0.220 / 0.180
G31     120.7          78.5                6.6 +/-    0.50       6.8 +/-    0.50  0.080 / 0.190
G32     51.5           41.2                4.1 +/-    1.51       5.9 +/-    1.51  0.090 / 0.240