PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-22:57:50
G08     262.3          16.7               13.4 +/-    1.30      31.9 +/-    1.30  0.180 / 0.260
G10     68.1           56.5                8.8 +/-    0.43      10.3 +/-    0.43  0.200 / 0.350
G11     308.4          20.0                9.4 +/-    1.34      20.7 +/-    1.34  0.130 / 0.340
G14     274.9          67.9                8.5 +/-    0.50       9.1 +/-    0.50  0.190 / 0.400
G18     309.7          36.1                9.5 +/-    2.52      14.7 +/-    2.52  0.040 / 0.060
G20     98.8           34.2                9.3 +/-    1.09      15.1 +/-    1.09  0.040 / 0.060
G21     155.2          11.5               11.9 +/-    1.63      32.2 +/-    1.63  0.160 / 0.280
G27     230.4          13.9               13.7 +/-    2.76      35.1 +/-    2.76  0.130 / 0.330
G31     177.7          33.9               11.7 +/-    2.15      19.0 +/-    2.15  0.120 / 0.340
G32     352.7          72.0                8.3 +/-    0.47       8.7 +/-    0.47  0.110 / 0.320