PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-00:27:40
G10     255.2          29.5               15.5 +/-    2.57      27.4 +/-    2.57  0.040 / 0.070
G13     49.9           28.1               12.1 +/-    3.32      22.0 +/-    3.32  0.040 / 0.080
G15     79.2           57.2               10.7 +/-    2.84      12.4 +/-    2.84  0.090 / 0.130
G16     292.2          14.1               10.0 +/-    2.96      25.4 +/-    2.96  0.110 / 0.120
G18     276.4          58.2              -53.4 +/-   60.77     -61.7 +/-   60.77  0.140 / 0.260
G20     47.2           42.8               12.7 +/-    1.60      17.7 +/-    1.60  0.170 / 0.260
G21     340.6          64.1               12.9 +/-    1.00      14.2 +/-    1.00  0.030 / 0.040
G26     264.7          13.3               13.2 +/-    0.95      34.2 +/-    0.95  0.040 / 0.050
G27     321.8          10.9               -8.3 +/-   33.01     -22.8 +/-   33.01  0.160 / 0.380
G29     165.3          41.5               16.9 +/-    1.08      24.0 +/-    1.08  0.190 / 0.380