PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-20:57:50
G10     273.4          41.1               19.6 +/-    1.63      28.0 +/-    1.63  0.130 / 0.260
G13     40.1           15.1               14.3 +/-    2.32      35.6 +/-    2.32  0.120 / 0.360
G15     53.6           43.8               16.2 +/-    1.38      22.2 +/-    1.38  0.040 / 0.050
G18     315.6          66.2               15.6 +/-    0.87      16.9 +/-    0.87  0.040 / 0.040
G20     58.7           30.5               16.9 +/-    0.79      29.3 +/-    0.79  0.150 / 0.280
G21     29.0           75.5               17.0 +/-    0.62      17.5 +/-    0.62  0.130 / 0.280
G24     116.5          17.4               20.9 +/-    2.04      49.1 +/-    2.04  0.070 / 0.150
G27     314.5          24.7               15.1 +/-    1.57      29.7 +/-    1.57  0.070 / 0.120
G29     166.4          20.4               21.3 +/-    1.47      46.5 +/-    1.47  0.070 / 0.180
G32     206.4          11.6               12.5 +/-   52.74      33.7 +/-   52.74  0.100 / 0.140