PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-01:58:00
G08     312.9          17.4                8.1 +/-    2.23      19.1 +/-    2.23  0.050 / 0.060
G10     323.8          58.6                8.2 +/-    0.63       9.4 +/-    0.63  0.060 / 0.070
G14     216.1          24.8               11.6 +/-    3.08      22.8 +/-    3.08  0.040 / 0.040
G15     46.2           16.7                5.7 +/-    3.08      13.6 +/-    3.08  0.040 / 0.040
G20     334.8          62.4               21.3 +/-    1.52      23.7 +/-    1.52  0.090 / 0.080
G21     129.1          62.4                9.3 +/-    0.78      10.3 +/-    0.78  0.080 / 0.090
G24     77.7           29.5                8.5 +/-    1.71      15.0 +/-    1.71  0.130 / 0.270
G27     280.9          37.7                8.3 +/-    1.81      12.6 +/-    1.81  0.110 / 0.240
G32     219.5          49.9               10.0 +/-    1.74      12.7 +/-    1.74  0.150 / 0.250