PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-19:58:00
G08     267.1          19.1                7.6 +/-    1.62      17.2 +/-    1.62  0.160 / 0.340
G10     58.3           58.7                8.4 +/-    0.35       9.6 +/-    0.35  0.150 / 0.320
G11     312.1          16.9                8.4 +/-    4.01      19.8 +/-    4.01  0.050 / 0.060
G14     262.8          65.5                8.7 +/-    0.96       9.5 +/-    0.96  0.040 / 0.060
G20     93.5           37.8                9.3 +/-    0.49      14.0 +/-    0.49  0.220 / 0.410
G21     154.0          15.4               10.1 +/-    2.20      24.9 +/-    2.20  0.250 / 0.480
G27     235.2          17.7                9.2 +/-    2.15      21.5 +/-    2.15  0.080 / 0.210
G31     180.2          26.6                9.3 +/-    2.36      17.5 +/-    2.36  0.110 / 0.210
G32     331.0          75.1                9.2 +/-    1.03       9.5 +/-    1.03  0.050 / 0.100