PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-14:42:40
G02     83.0           14.7                7.2 +/-    1.45      18.0 +/-    1.45  0.090 / 0.230
G05     44.5           35.5                6.3 +/-    0.67       9.9 +/-    0.67  0.100 / 0.240
G13     98.9           32.7               11.0 +/-    0.76      18.2 +/-    0.76  0.070 / 0.110
G15     147.8          36.8               10.8 +/-    1.35      16.5 +/-    1.35  0.060 / 0.110
G20     234.0          22.4                7.7 +/-    2.88      16.0 +/-    2.88  0.020 / 0.020
G21     297.9          37.1                7.9 +/-    1.11      12.1 +/-    1.11  0.030 / 0.030
G25     204.8          24.0                7.5 +/-    3.12      15.1 +/-    3.12  0.040 / 0.080
G26     307.1          17.2                4.7 +/-    1.02      11.1 +/-    1.02  0.040 / 0.070
G29     23.4           85.5                7.0 +/-    0.48       7.0 +/-    0.48  0.050 / 0.100