PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-02:27:50
G01     222.4          13.3                7.1 +/-    1.88      18.5 +/-    1.88  0.040 / 0.040
G03     274.4          69.1                5.6 +/-    0.71       5.9 +/-    0.71  0.040 / 0.050
G09     299.1          16.0                4.6 +/-    1.75      11.2 +/-    1.75  0.300 / 0.370
G14     91.2           21.0                4.7 +/-    1.99      10.1 +/-    1.99  0.150 / 0.330
G16     139.5          50.6                8.5 +/-    0.84      10.7 +/-    0.84  0.130 / 0.260
G22     208.6          66.2                7.6 +/-    0.58       8.2 +/-    0.58  0.120 / 0.250
G23     310.5          40.0                6.0 +/-    1.23       8.8 +/-    1.23  0.070 / 0.110
G26     86.8           54.4                6.2 +/-    0.53       7.4 +/-    0.53  0.050 / 0.090
G31     47.4           28.0                2.5 +/-    0.98       4.5 +/-    0.98  0.070 / 0.080