PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-20:57:40
G05     49.0           16.9                8.3 +/-    1.70      19.6 +/-    1.70  0.100 / 0.130
G10     236.6          13.2               15.2 +/-    2.06      39.5 +/-    2.06  0.150 / 0.130
G13     74.4           36.1               11.0 +/-    1.05      17.2 +/-    1.05  0.060 / 0.060
G15     129.8          52.3               11.4 +/-    0.60      14.0 +/-    0.60  0.040 / 0.060
G16     311.9          13.8               10.1 +/-    1.88      25.7 +/-    1.88  0.120 / 0.340
G20     240.3          0.9                 6.6 +/-    1.63      20.8 +/-    1.63  0.160 / 0.280
G21     312.9          46.6               12.3 +/-    0.92      16.3 +/-    0.92  0.060 / 0.090
G26     284.9          20.9               13.9 +/-    1.29      30.0 +/-    1.29  0.070 / 0.110
G29     156.9          73.0               10.8 +/-    1.11      11.2 +/-    1.11  0.040 / 0.040