PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-10:57:40
G01     58.3           29.9                5.4 +/-    2.20       9.5 +/-    2.20  0.120 / 0.210
G07     142.9          19.9                4.6 +/-    2.56      10.1 +/-    2.56  0.110 / 0.230
G11     46.9           21.2                4.0 +/-    2.97       8.6 +/-    2.97  0.040 / 0.040
G13     260.0          34.8                6.9 +/-    1.43      10.9 +/-    1.43  0.030 / 0.040
G15     296.8          14.5                2.1 +/-    1.25       5.3 +/-    1.25  0.110 / 0.080
G17     272.9          78.9                7.1 +/-    0.70       7.2 +/-    0.70  0.110 / 0.140
G18     40.3           10.6                3.8 +/-    1.53      10.4 +/-    1.53  0.080 / 0.120
G19     233.3          47.7                6.5 +/-    1.74       8.4 +/-    1.74  0.060 / 0.100
G28     37.0           56.7                4.9 +/-    1.36       5.8 +/-    1.36  0.100 / 0.340
G30     145.4          52.2                8.2 +/-    0.37      10.0 +/-    0.37  0.100 / 0.450