PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-13:43:10
G02     26.0           60.6                5.1 +/-    1.02       5.8 +/-    1.02  0.030 / 0.030
G05     152.9          56.1                7.4 +/-    0.62       8.7 +/-    0.62  0.020 / 0.030
G06     51.3           19.2                3.5 +/-    1.71       7.8 +/-    1.71  0.050 / 0.050
G12     202.9          72.2                6.3 +/-    0.35       6.6 +/-    0.35  0.050 / 0.050
G19     95.0           15.3                5.0 +/-    2.23      12.3 +/-    2.23  0.030 / 0.040
G25     299.6          53.9                4.2 +/-    1.96       5.1 +/-    1.96  0.030 / 0.040
G29     304.1          24.7                4.7 +/-    1.68       9.3 +/-    1.68  0.180 / 0.230