PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-09:43:10
G03     217.7          60.3                7.3 +/-    1.79       8.3 +/-    1.79  0.040 / 0.060
G07     255.3          13.8                6.5 +/-    6.06      16.7 +/-    6.06  0.040 / 0.060
G09     309.9          28.0                3.2 +/-    2.00       5.8 +/-    2.00  0.080 / 0.280
G14     107.3          9.5                 4.6 +/-    1.08      12.9 +/-    1.08  0.070 / 0.280
G16     95.9           63.4                6.7 +/-    0.56       7.4 +/-    0.56  0.030 / 0.030
G22     188.6          43.3                7.5 +/-    0.32      10.3 +/-    0.32  0.040 / 0.040
G23     329.7          59.2                5.3 +/-    0.71       6.1 +/-    0.71  0.150 / 0.320
G26     54.2           43.0                4.7 +/-    0.73       6.5 +/-    0.73  0.160 / 0.240
G31     58.8           9.8                 4.2 +/-    4.79      11.8 +/-    4.79  0.040 / 0.040