PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-16:13:00
G05     50.1           15.6                7.1 +/-    1.72      17.3 +/-    1.72  0.130 / 0.300
G10     239.9          18.7               10.1 +/-    1.78      22.9 +/-    1.78  0.090 / 0.280
G13     67.2           34.2                9.5 +/-    0.77      15.3 +/-    0.77  0.040 / 0.070
G15     110.8          55.6               11.2 +/-    0.38      13.2 +/-    0.38  0.050 / 0.060
G16     308.1          14.7                5.6 +/-    2.47      14.1 +/-    2.47  0.120 / 0.440
G20     255.3          43.5               10.2 +/-    1.74      14.1 +/-    1.74  0.120 / 0.550
G21     319.4          50.5               11.1 +/-    1.18      13.9 +/-    1.18  0.030 / 0.040
G26     281.5          19.3                6.6 +/-    2.15      14.7 +/-    2.15  0.030 / 0.040
G29     157.9          66.8               12.2 +/-    0.37      13.1 +/-    0.37  0.120 / 0.310