PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-05:43:10
G10     261.3          34.4                6.8 +/-    1.06      10.9 +/-    1.06  0.130 / 0.310
G13     45.0           22.6                4.1 +/-    0.63       8.5 +/-    0.63  0.120 / 0.270
G15     65.8           52.4                6.2 +/-    0.37       7.6 +/-    0.37  0.080 / 0.110
G16     283.6          13.7                3.6 +/-    1.74       9.2 +/-    1.74  0.100 / 0.110
G20     343.0          69.5                5.9 +/-    0.60       6.3 +/-    0.60  0.090 / 0.230
G21     350.4          68.1                4.4 +/-    0.96       4.7 +/-    0.96  0.150 / 0.330
G24     124.7          11.0               -2.6 +/-   30.13      -7.2 +/-   30.13  0.160 / 0.310
G26     256.1          10.4                4.7 +/-    2.45      13.0 +/-    2.45  0.120 / 0.270
G27     320.6          14.9                2.5 +/-    2.40       6.1 +/-    2.40  0.040 / 0.050
G29     167.5          37.5                7.3 +/-    1.08      11.1 +/-    1.08  0.040 / 0.050