PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/07-05:12:40
G01     219.6          10.4                7.4 +/-    1.80      20.4 +/-    1.80  0.280 / 0.420
G03     261.0          69.6                5.6 +/-    0.58       5.9 +/-    0.58  0.190 / 0.420
G09     301.4          18.1                5.3 +/-    1.21      12.3 +/-    1.21  0.030 / 0.050
G14     94.5           19.0                4.8 +/-    0.85      10.8 +/-    0.85  0.030 / 0.050
G16     132.8          54.7                7.4 +/-    0.67       8.9 +/-    0.67  0.090 / 0.220
G22     201.8          61.9                5.5 +/-    1.02       6.1 +/-    1.02  0.090 / 0.270
G23     314.2          43.9                4.8 +/-    1.39       6.5 +/-    1.39  0.060 / 0.080
G26     77.5           53.1                4.5 +/-    0.92       5.5 +/-    0.92  0.050 / 0.090
G31     49.7           23.3                2.5 +/-    1.30       5.1 +/-    1.30  0.030 / 0.060