PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-23:12:50
G10     258.5          32.9               12.8 +/-    1.22      21.2 +/-    1.22  0.190 / 0.350
G13     46.5           24.2                8.4 +/-    1.00      16.6 +/-    1.00  0.130 / 0.320
G15     74.4           56.8                8.7 +/-    0.60      10.2 +/-    0.60  0.050 / 0.060
G16     285.3          14.8                8.9 +/-    3.13      22.3 +/-    3.13  0.060 / 0.060
G20     262.6          28.7               15.6 +/-    0.98      28.1 +/-    0.98  0.150 / 0.310
G21     344.1          65.6                6.1 +/-    0.92       6.6 +/-    0.92  0.160 / 0.360
G26     258.3          11.8               12.8 +/-    1.69      34.4 +/-    1.69  0.100 / 0.110
G27     321.7          11.9                3.2 +/-   23.43       8.6 +/-   23.43  0.110 / 0.110
G29     167.2          41.4               11.7 +/-    1.00      16.6 +/-    1.00  0.070 / 0.200