PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-00:58:10
G10     258.4          32.7               11.0 +/-    2.49      18.2 +/-    2.49  0.550 / 0.360
G13     46.7           24.5               10.7 +/-    2.37      21.2 +/-    2.37  0.520 / 0.330
G15     73.3           56.1               11.1 +/-    0.49      13.1 +/-    0.49  0.050 / 0.050
G16     285.8          14.7                7.6 +/-    3.34      19.2 +/-    3.34  0.040 / 0.050
G20     269.7          42.3                8.5 +/-    2.31      11.9 +/-    2.31  0.120 / 0.180
G21     344.1          65.6               11.2 +/-    0.49      12.2 +/-    0.49  0.070 / 0.140
G26     258.5          11.9               11.6 +/-    4.08      31.0 +/-    4.08  0.140 / 0.340
G27     321.7          11.9               -2.0 +/-   28.96      -5.3 +/-   28.96  0.110 / 0.320
G29     167.2          41.4               10.9 +/-    0.64      15.5 +/-    0.64  0.040 / 0.040