PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-11:27:50
G03     192.0          26.7                4.7 +/-    3.10       8.8 +/-    3.10  0.210 / 0.460
G07     286.3          37.8                4.3 +/-    1.06       6.5 +/-    1.06  0.160 / 0.440
G08     147.7          21.3                5.5 +/-    2.60      11.7 +/-    2.60  0.080 / 0.480
G09     320.3          54.5                2.6 +/-    0.84       3.1 +/-    0.84  0.190 / 0.460
G16     46.4           46.0                2.1 +/-    0.98       2.8 +/-    0.98  0.050 / 0.080
G22     179.2          11.7                2.9 +/-    2.43       7.8 +/-    2.43  0.080 / 0.140
G23     85.3           81.3                2.4 +/-    0.56       2.4 +/-    0.56  0.070 / 0.100
G26     43.4           17.9                2.8 +/-    3.89       6.4 +/-    3.89  0.070 / 0.100
G27     108.9          30.0                4.9 +/-    0.71       8.6 +/-    0.71  0.030 / 0.030
G30     269.5          10.8              -15.0 +/-   16.08     -41.1 +/-   16.08  0.030 / 0.020