PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/20-01:57:40
G01     286.3          41.1                5.5 +/-    1.52       7.8 +/-    1.52  0.050 / 0.090
G03     312.9          18.8                4.3 +/-    1.28       9.6 +/-    1.28  0.050 / 0.090
G10     122.4          25.5                7.8 +/-    1.97      15.0 +/-    1.97  0.060 / 0.070
G11     260.2          24.7                7.9 +/-    1.72      15.6 +/-    1.72  0.070 / 0.090
G14     28.2           57.2                3.4 +/-    1.33       4.0 +/-    1.33  0.040 / 0.060
G18     246.0          45.9                7.1 +/-    1.45       9.5 +/-    1.45  0.040 / 0.050
G22     314.3          40.8                6.1 +/-    2.10       8.8 +/-    2.10  0.080 / 0.200
G25     61.2           17.7                3.8 +/-    0.67       8.9 +/-    0.67  0.080 / 0.230
G31     103.8          79.7                4.0 +/-    0.84       4.0 +/-    0.84  0.060 / 0.130
G32     55.0           38.7                4.4 +/-    2.03       6.5 +/-    2.03  0.060 / 0.120