PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-23:13:00
G10     258.5          32.9               11.6 +/-    2.87      19.2 +/-    2.87  0.490 / 0.410
G13     46.5           24.2                8.1 +/-    2.08      16.2 +/-    2.08  0.180 / 0.230
G15     74.4           56.8               10.5 +/-    0.68      12.3 +/-    0.68  0.040 / 0.040
G16     285.3          14.8                8.7 +/-    1.66      21.7 +/-    1.66  0.060 / 0.030
G20     262.6          28.7               15.9 +/-    2.55      28.7 +/-    2.55  0.070 / 0.090
G21     344.1          65.6                9.5 +/-    0.51      10.4 +/-    0.51  0.070 / 0.100
G24     125.6          9.5               -15.3 +/-   18.96     -43.1 +/-   18.96  0.180 / 0.180
G26     258.3          11.8               13.0 +/-    2.16      34.9 +/-    2.16  0.080 / 0.150
G27     321.7          11.9               -2.0 +/-   27.26      -5.5 +/-   27.26  0.070 / 0.190
G29     167.2          41.4               11.4 +/-    0.76      16.3 +/-    0.76  0.040 / 0.050