PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-18:12:50
G08     266.4          18.9                7.5 +/-    1.94      17.0 +/-    1.94  0.190 / 0.380
G10     59.6           58.3                7.7 +/-    0.58       8.9 +/-    0.58  0.140 / 0.440
G11     311.6          17.4                5.3 +/-    2.29      12.4 +/-    2.29  0.020 / 0.040
G14     264.6          66.2                7.4 +/-    0.89       8.1 +/-    0.89  0.030 / 0.040
G18     311.9          33.7                5.2 +/-    0.77       8.5 +/-    0.77  0.080 / 0.230
G20     94.2           37.3                7.3 +/-    0.83      11.1 +/-    0.83  0.090 / 0.250
G21     153.8          13.7                8.2 +/-    3.91      21.0 +/-    3.91  0.050 / 0.060
G27     235.1          17.4                8.8 +/-    1.55      20.6 +/-    1.55  0.050 / 0.060
G31     181.1          26.1                8.8 +/-    2.97      16.7 +/-    2.97  0.090 / 0.230
G32     330.5          74.9                8.2 +/-    0.83       8.4 +/-    0.83  0.080 / 0.240