PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/18-22:42:40
G01     317.5          21.6                5.8 +/-    2.94      12.3 +/-    2.94  0.150 / 0.330
G08     251.9          10.9                9.2 +/-    3.96      25.1 +/-    3.96  0.210 / 0.310
G10     86.6           50.2                9.8 +/-    0.64      12.4 +/-    0.64  0.120 / 0.210
G11     298.0          25.6                9.5 +/-    1.11      18.2 +/-    1.11  0.100 / 0.210
G14     310.6          71.2                8.8 +/-    0.93       9.2 +/-    0.93  0.050 / 0.040
G18     298.8          44.8                9.6 +/-    2.23      12.9 +/-    2.23  0.050 / 0.050
G20     109.0          25.9               12.6 +/-    1.16      24.0 +/-    1.16  0.120 / 0.380
G22     302.8          12.7                9.3 +/-    2.87      24.4 +/-    2.87  0.150 / 0.370
G31     175.5          46.4                9.8 +/-    1.38      12.9 +/-    1.38  0.080 / 0.170
G32     16.4           63.9                7.6 +/-    0.59       8.3 +/-    0.59  0.080 / 0.150