PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-18:12:50
G10     263.7          36.5               10.7 +/-    1.34      16.6 +/-    1.34  0.120 / 0.320
G13     43.4           20.4                8.1 +/-    2.60      17.6 +/-    2.60  0.110 / 0.300
G15     66.0           53.9                8.8 +/-    0.80      10.6 +/-    0.80  0.140 / 0.290
G16     282.2          13.1                7.7 +/-    1.28      20.1 +/-    1.28  0.130 / 0.280
G20     291.7          58.8                9.0 +/-    0.92      10.3 +/-    0.92  0.040 / 0.040
G21     358.9          70.3                9.3 +/-    0.51       9.8 +/-    0.51  0.040 / 0.050
G24     119.7          12.8                9.7 +/-    3.57      25.4 +/-    3.57  0.110 / 0.240
G27     320.6          14.9                7.7 +/-    2.25      19.2 +/-    2.25  0.130 / 0.190
G29     167.2          34.4                9.8 +/-    0.74      15.7 +/-    0.74  0.160 / 0.300