PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-23:27:50
G08     263.5          17.3                8.5 +/-    0.96      19.9 +/-    0.96  0.100 / 0.420
G10     65.8           57.1                8.8 +/-    1.08      10.2 +/-    1.08  0.200 / 0.360
G11     309.3          19.3                6.2 +/-    1.24      13.8 +/-    1.24  0.190 / 0.430
G14     271.5          67.2                7.1 +/-    0.57       7.6 +/-    0.57  0.310 / 0.280
G18     310.6          34.9                6.0 +/-    1.88       9.6 +/-    1.88  0.030 / 0.050
G20     97.6           35.1                8.8 +/-    0.54      14.0 +/-    0.54  0.040 / 0.050
G21     155.1          12.8               10.6 +/-    2.71      27.8 +/-    2.71  0.080 / 0.190
G27     231.2          14.7               10.3 +/-    1.51      25.7 +/-    1.51  0.090 / 0.250
G31     177.8          32.9               10.3 +/-    2.46      17.0 +/-    2.46  0.140 / 0.220
G32     349.7          72.7                7.7 +/-    0.91       8.0 +/-    0.91  0.150 / 0.190