PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-04:12:30
G03     242.0          68.1                4.3 +/-    1.16       4.6 +/-    1.16  0.070 / 0.050
G09     305.5          23.6                3.8 +/-    2.48       7.7 +/-    2.48  0.060 / 0.050
G14     99.7           14.8                4.0 +/-    1.98      10.1 +/-    1.98  0.130 / 0.340
G16     123.0          59.2                6.8 +/-    1.00       7.7 +/-    1.00  0.160 / 0.320
G22     196.7          55.8                5.3 +/-    0.63       6.2 +/-    0.63  0.040 / 0.050
G23     318.5          48.2                4.4 +/-    0.94       5.7 +/-    0.94  0.060 / 0.050
G26     68.1           51.0                5.0 +/-    0.85       6.3 +/-    0.85  0.040 / 0.040
G31     52.5           19.1                2.5 +/-    2.57       5.6 +/-    2.57  0.040 / 0.040