PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-14:13:10
G03     207.2          53.9                9.7 +/-    1.79      11.7 +/-    1.79  0.030 / 0.040
G07     259.5          16.9                7.1 +/-    1.55      16.8 +/-    1.55  0.040 / 0.050
G09     311.9          30.7                6.7 +/-    1.56      11.5 +/-    1.56  0.030 / 0.060
G16     83.2           63.4                7.5 +/-    0.61       8.3 +/-    0.61  0.030 / 0.060
G22     183.6          34.9                8.6 +/-    1.90      13.7 +/-    1.90  0.050 / 0.070
G23     340.9          66.8                6.4 +/-    0.49       6.9 +/-    0.49  0.060 / 0.070
G26     50.0           38.9                6.9 +/-    1.31      10.2 +/-    1.31  0.070 / 0.340
G27     131.3          13.0                8.0 +/-    3.42      20.9 +/-    3.42  0.080 / 0.310