PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-15:27:50
G01     320.8          11.5               -4.7 +/-   32.62     -12.6 +/-   32.62  0.180 / 0.520
G08     266.5          16.5                8.6 +/-    5.07      20.7 +/-    5.07  0.130 / 0.290
G10     66.6           57.4                8.1 +/-    0.89       9.5 +/-    0.89  0.060 / 0.080
G11     310.9          17.2                6.9 +/-    1.38      16.3 +/-    1.38  0.060 / 0.090
G14     272.9          66.8                8.3 +/-    0.63       8.9 +/-    0.63  0.030 / 0.040
G27     228.5          13.3                7.2 +/-    2.31      18.5 +/-    2.31  0.030 / 0.050
G31     177.4          34.2                8.5 +/-    1.26      13.7 +/-    1.26  0.140 / 0.290
G32     351.1          72.1                8.0 +/-    0.43       8.4 +/-    0.43  0.420 / 0.310