PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-18:42:40
G05     52.8           10.9                9.1 +/-    3.38      24.9 +/-    3.38  0.040 / 0.050
G10     244.5          21.6               17.1 +/-    0.56      36.2 +/-    0.56  0.040 / 0.060
G13     60.9           33.2               11.7 +/-    1.15      19.2 +/-    1.15  0.050 / 0.110
G15     110.4          58.4               14.2 +/-    0.46      16.3 +/-    0.46  0.050 / 0.120
G16     302.8          15.3                8.7 +/-    3.49      21.4 +/-    3.49  0.150 / 0.550
G20     260.4          45.7               14.6 +/-    1.31      19.5 +/-    1.31  0.110 / 0.600
G21     325.9          55.4               12.1 +/-    0.71      14.3 +/-    0.71  0.160 / 0.340
G26     275.5          18.1               12.4 +/-    1.74      28.7 +/-    1.74  0.120 / 0.310
G29     162.0          58.8               14.7 +/-    0.73      16.9 +/-    0.73  0.030 / 0.040