PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-03:58:00
G08     270.3          19.5                9.3 +/-    1.60      20.7 +/-    1.60  0.120 / 0.400
G10     54.8           59.6                5.5 +/-    0.96       6.3 +/-    0.96  0.140 / 0.360
G14     257.3          62.1                8.3 +/-    0.78       9.3 +/-    0.78  0.050 / 0.060
G18     314.0          28.7                8.4 +/-    1.49      15.0 +/-    1.49  0.040 / 0.060
G20     77.0           56.0               11.3 +/-    0.45      13.4 +/-    0.45  0.030 / 0.030
G21     154.4          19.5                7.8 +/-    2.29      17.4 +/-    2.29  0.030 / 0.030
G24     40.5           11.4                6.8 +/-    1.96      18.5 +/-    1.96  0.140 / 0.260
G27     234.5          18.2               10.9 +/-    1.93      25.0 +/-    1.93  0.150 / 0.300
G31     177.4          28.6               11.8 +/-    1.27      21.3 +/-    1.27  0.100 / 0.370
G32     334.0          75.4                8.4 +/-    0.52       8.6 +/-    0.52  0.090 / 0.420