PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-19:12:40
G03     207.9          56.5               12.4 +/-    1.68      14.6 +/-    1.68  0.080 / 0.090
G07     256.8          14.8               11.9 +/-    1.80      29.7 +/-    1.80  0.070 / 0.070
G09     309.9          26.9                7.4 +/-    1.16      13.8 +/-    1.16  0.050 / 0.050
G16     97.1           64.9               13.3 +/-    1.15      14.5 +/-    1.15  0.050 / 0.050
G22     187.0          40.8               13.3 +/-    1.24      19.1 +/-    1.24  0.200 / 0.370
G23     332.0          61.1               11.4 +/-    0.57      12.8 +/-    0.57  0.200 / 0.250
G26     53.4           42.9                9.6 +/-    0.80      13.3 +/-    0.80  0.060 / 0.050
G27     133.5          10.8                4.0 +/-   47.40      10.9 +/-   47.40  0.070 / 0.070