PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-20:12:40
G05     48.2           19.7                6.7 +/-    0.35      14.8 +/-    0.35  0.040 / 0.080
G10     235.6          11.9               13.3 +/-    2.85      35.5 +/-    2.85  0.040 / 0.090
G13     76.6           36.2               10.3 +/-    0.46      16.0 +/-    0.46  0.060 / 0.180
G15     134.8          50.6               12.4 +/-    1.04      15.5 +/-    1.04  0.060 / 0.190
G16     314.2          12.6                7.3 +/-    1.64      19.1 +/-    1.64  0.100 / 0.380
G20     247.2          36.1               11.7 +/-    0.79      18.2 +/-    0.79  0.100 / 0.370
G21     312.3          46.2                9.6 +/-    0.68      12.7 +/-    0.68  0.240 / 0.450
G25     198.3          10.7               12.9 +/-    4.29      35.5 +/-    4.29  0.250 / 0.590
G26     287.9          20.6                9.5 +/-    1.46      20.6 +/-    1.46  0.060 / 0.120
G29     154.8          74.2               13.7 +/-    0.64      14.2 +/-    0.64  0.070 / 0.130