PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-17:27:30
G10     263.7          36.6               13.8 +/-    1.38      21.3 +/-    1.38  0.040 / 0.040
G13     43.4           20.4                9.5 +/-    2.51      20.7 +/-    2.51  0.040 / 0.030
G15     65.4           53.4               11.2 +/-    0.60      13.5 +/-    0.60  0.120 / 0.360
G16     282.5          13.1               10.1 +/-    1.53      26.2 +/-    1.53  0.110 / 0.330
G20     291.7          58.9               11.8 +/-    0.84      13.6 +/-    0.84  0.150 / 0.330
G21     0.1            70.5               11.9 +/-    0.83      12.5 +/-    0.83  0.230 / 0.290
G24     119.5          12.8               13.2 +/-    1.79      34.6 +/-    1.79  0.050 / 0.040
G27     320.7          14.7                8.6 +/-    3.81      21.6 +/-    3.81  0.030 / 0.040
G29     167.0          34.2               13.2 +/-    0.96      21.2 +/-    0.96  0.110 / 0.270