PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-13:12:30
G10     306.9          54.5                2.5 +/-    0.90       3.0 +/-    0.90  0.100 / 0.060
G14     212.5          16.7                3.4 +/-    2.00       8.0 +/-    2.00  0.060 / 0.090
G15     45.4           20.9                2.4 +/-    2.08       5.1 +/-    2.08  0.030 / 0.030
G20     74.4           18.3                1.5 +/-    2.07       3.5 +/-    2.07  0.030 / 0.040
G21     116.0          66.8                4.0 +/-    0.93       4.3 +/-    0.93  0.090 / 0.200
G24     91.0           28.8                2.9 +/-    1.00       5.2 +/-    1.00  0.080 / 0.250
G27     291.5          37.0                7.5 +/-    1.94      11.5 +/-    1.94  0.180 / 0.350
G32     213.8          39.2                5.0 +/-    2.13       7.3 +/-    2.13  0.200 / 0.380