PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-12:12:30
G03     239.5          68.7                5.3 +/-    0.61       5.6 +/-    0.61  0.110 / 0.190
G09     302.8          17.5                5.3 +/-    3.03      12.3 +/-    3.03  0.110 / 0.190
G14     97.3           18.9                6.0 +/-    0.86      13.5 +/-    0.86  0.060 / 0.040
G16     124.9          58.6                8.0 +/-    0.64       9.2 +/-    0.64  0.050 / 0.050
G22     191.4          54.4                5.4 +/-    0.59       6.5 +/-    0.59  0.040 / 0.040
G23     321.3          51.3                6.0 +/-    1.33       7.4 +/-    1.33  0.040 / 0.040
G26     68.5           50.7                5.6 +/-    0.68       7.0 +/-    0.68  0.050 / 0.060
G31     52.3           18.5                4.6 +/-    2.87      10.4 +/-    2.87  0.050 / 0.050