PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/21-00:28:10
G01     319.0          18.3                5.5 +/-    1.21      12.6 +/-    1.21  0.120 / 0.170
G08     255.6          12.9                8.8 +/-    2.22      23.1 +/-    2.22  0.130 / 0.190
G10     80.8           52.6                7.6 +/-    0.32       9.2 +/-    0.32  0.040 / 0.060
G11     301.9          23.9                7.0 +/-    1.48      14.1 +/-    1.48  0.040 / 0.050
G14     296.5          70.4                8.3 +/-    0.60       8.7 +/-    0.60  0.190 / 0.270
G18     303.5          41.7                7.7 +/-    1.64      10.9 +/-    1.64  0.190 / 0.270
G20     105.8          28.8                7.9 +/-    1.72      14.2 +/-    1.72  0.080 / 0.210
G31     175.4          43.0               10.4 +/-    1.36      14.4 +/-    1.36  0.090 / 0.200
G32     10.9           66.5                5.0 +/-    0.67       5.4 +/-    0.67  0.040 / 0.090