PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-05:42:40
G03     262.5          69.1                4.6 +/-    0.94       4.8 +/-    0.94  0.040 / 0.040
G09     301.2          17.1                3.5 +/-    1.80       8.2 +/-    1.80  0.040 / 0.040
G14     95.0           18.4                4.4 +/-    1.51      10.1 +/-    1.51  0.100 / 0.220
G16     130.0          55.4                5.1 +/-    0.65       6.1 +/-    0.65  0.120 / 0.240
G22     203.5          62.1                5.5 +/-    0.48       6.1 +/-    0.48  0.050 / 0.070
G23     314.2          43.7                3.9 +/-    0.57       5.4 +/-    0.57  0.050 / 0.060
G26     75.1           52.2                3.9 +/-    0.85       4.8 +/-    0.85  0.040 / 0.040
G31     50.2           21.8                1.9 +/-    3.17       4.0 +/-    3.17  0.030 / 0.050