PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-02:58:00
G01     256.8          37.9                7.2 +/-    2.66      10.8 +/-    2.66  0.050 / 0.090
G03     316.5          37.9                4.6 +/-    1.02       6.9 +/-    1.02  0.060 / 0.070
G11     240.2          14.5                5.9 +/-    1.53      14.7 +/-    1.53  0.060 / 0.070
G14     54.4           44.4                5.9 +/-    0.88       8.0 +/-    0.88  0.070 / 0.070
G18     223.3          30.9                7.7 +/-    2.31      13.2 +/-    2.31  0.040 / 0.050
G22     309.6          60.9                4.9 +/-    0.77       5.5 +/-    0.77  0.050 / 0.050
G25     42.0           11.2                5.2 +/-    1.70      14.1 +/-    1.70  0.140 / 0.430
G26     139.4          34.4                3.5 +/-   16.15       5.7 +/-   16.15  0.130 / 0.410
G31     43.0           62.8                4.7 +/-    0.65       5.3 +/-    0.65  0.130 / 0.230
G32     73.7           24.9                5.8 +/-    1.28      11.3 +/-    1.28  0.180 / 0.270