PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-20:42:30
G03     221.1          63.9               11.2 +/-    1.48      12.3 +/-    1.48  0.040 / 0.060
G09     306.1          21.3                8.4 +/-    2.68      17.9 +/-    2.68  0.040 / 0.050
G14     103.9          11.6               10.4 +/-    2.34      28.1 +/-    2.34  0.140 / 0.320
G16     118.7          62.6               12.6 +/-    0.50      14.0 +/-    0.50  0.140 / 0.410
G22     191.1          49.4               12.6 +/-    0.94      16.0 +/-    0.94  0.050 / 0.040
G23     324.2          54.0                9.6 +/-    0.64      11.5 +/-    0.64  0.040 / 0.050
G26     61.7           48.8                8.7 +/-    0.94      11.2 +/-    0.94  0.100 / 0.220
G31     55.1           15.6                8.0 +/-    3.31      19.6 +/-    3.31  0.140 / 0.160