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                7.1 +/-    3.67      15.9 +/-    3.67  0.050 / 0.040
G10     58.3           58.7                8.1 +/-    0.94       9.3 +/-    0.94  0.050 / 0.050
G11     312.1          16.9                8.1 +/-    1.07      19.3 +/-    1.07  0.090 / 0.200
G14     262.8          65.5                8.9 +/-    0.66       9.7 +/-    0.66  0.140 / 0.180
G20     93.5           37.8                9.5 +/-    1.57      14.4 +/-    1.57  0.160 / 0.390
G21     154.0          15.4               10.5 +/-    2.55      25.8 +/-    2.55  0.140 / 0.470
G27     235.2          17.7                8.3 +/-    2.27      19.2 +/-    2.27  0.020 / 0.020
G31     180.2          26.6               10.0 +/-    1.55      18.8 +/-    1.55  0.030 / 0.020
G32     331.0          75.1                7.8 +/-    0.49       8.0 +/-    0.49  0.240 / 0.200