PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-19:12:30
G10     254.2          29.9               24.0 +/-    3.10      42.2 +/-    3.10  0.060 / 0.040
G13     49.9           27.2               19.0 +/-    2.29      35.3 +/-    2.29  0.050 / 0.040
G15     85.1           59.1               23.4 +/-    0.77      26.8 +/-    0.77  0.130 / 0.480
G16     291.4          15.2               19.0 +/-    1.81      47.0 +/-    1.81  0.120 / 0.550
G20     275.5          53.4               22.7 +/-    3.65      27.5 +/-    3.65  0.060 / 0.150
G21     340.2          63.4               22.8 +/-    0.55      25.2 +/-    0.55  0.080 / 0.150
G26     264.4          13.9               19.8 +/-    2.54      50.7 +/-    2.54  0.030 / 0.040
G29     165.6          45.6               26.0 +/-    1.08      34.8 +/-    1.08  0.030 / 0.040