PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-21:13:00
G03     197.5          39.6               11.0 +/-    1.90      16.0 +/-    1.90  0.210 / 0.410
G07     271.0          25.3               13.1 +/-    1.38      25.4 +/-    1.38  0.210 / 0.390
G08     155.8          10.9                3.3 +/-   39.21       8.9 +/-   39.21  0.110 / 0.190
G09     317.2          41.7               10.2 +/-    2.19      14.4 +/-    2.19  0.060 / 0.220
G16     59.0           58.6                9.9 +/-    0.58      11.4 +/-    0.58  0.110 / 0.130
G22     182.7          24.3               10.6 +/-    1.82      21.0 +/-    1.82  0.080 / 0.190
G23     355.5          75.6                9.3 +/-    0.83       9.6 +/-    0.83  0.030 / 0.050
G26     44.5           29.1                6.2 +/-    1.15      11.1 +/-    1.15  0.040 / 0.060
G27     119.6          22.4               12.3 +/-    0.99      25.5 +/-    0.99  0.040 / 0.040