PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-02:27:50
G01     251.0          35.5                6.0 +/-    1.21       9.5 +/-    1.21  0.040 / 0.040
G03     316.1          42.5                3.3 +/-    1.10       4.6 +/-    1.10  0.040 / 0.050
G11     236.1          11.8                8.0 +/-    1.67      21.4 +/-    1.67  0.040 / 0.070
G14     59.8           41.3                3.4 +/-    1.59       4.8 +/-    1.59  0.050 / 0.100
G18     219.4          26.9                6.8 +/-    1.45      12.7 +/-    1.45  0.070 / 0.110
G22     304.9          65.3                2.9 +/-    1.40       3.2 +/-    1.40  0.060 / 0.120
G23     286.3          18.5                6.1 +/-    1.44      13.9 +/-    1.44  0.090 / 0.430
G26     135.4          38.3                7.0 +/-    0.90      10.5 +/-    0.90  0.120 / 0.390
G31     41.2           58.1                2.2 +/-    0.59       2.5 +/-    0.59  0.100 / 0.220
G32     77.8           22.0                3.4 +/-    0.67       7.0 +/-    0.67  0.090 / 0.220