PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-17:27:50
G01     245.5          32.2               11.1 +/-    1.42      18.6 +/-    1.42  0.070 / 0.240
G03     313.9          52.4                8.0 +/-    1.92       9.8 +/-    1.92  0.090 / 0.220
G11     235.8          10.0               10.7 +/-    2.12      29.9 +/-    2.12  0.030 / 0.040
G14     64.6           39.0                8.3 +/-    0.60      12.3 +/-    0.60  0.030 / 0.040
G16     160.9          23.0               11.5 +/-    1.26      23.6 +/-    1.26  0.060 / 0.110
G22     293.1          72.2                9.1 +/-    1.42       9.5 +/-    1.42  0.050 / 0.130
G23     291.4          23.9               10.6 +/-    2.77      21.1 +/-    2.77  0.030 / 0.040
G26     130.1          42.5               11.9 +/-    1.38      16.6 +/-    1.38  0.030 / 0.030
G31     40.4           52.3                8.1 +/-    0.55      10.0 +/-    0.55  0.080 / 0.160
G32     82.2           18.9                8.6 +/-    0.48      19.5 +/-    0.48  0.060 / 0.190