PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-03:57:30
G03     257.0          69.5                4.8 +/-    1.04       5.1 +/-    1.04  0.030 / 0.040
G09     302.6          20.1                2.1 +/-    1.36       4.7 +/-    1.36  0.030 / 0.040
G14     95.7           17.9                3.5 +/-    1.66       8.1 +/-    1.66  0.120 / 0.220
G16     131.5          55.6                6.5 +/-    0.82       7.7 +/-    0.82  0.140 / 0.270
G22     201.1          60.8                6.4 +/-    1.00       7.3 +/-    1.00  0.040 / 0.060
G23     314.8          44.4                4.3 +/-    0.79       5.9 +/-    0.79  0.040 / 0.070
G26     76.0           53.0                4.4 +/-    0.49       5.4 +/-    0.49  0.030 / 0.050
G31     50.1           22.9                2.4 +/-    2.71       5.0 +/-    2.71  0.030 / 0.040