PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-00:58:00
G01     320.0          15.4               -0.0 +/-   23.99      -0.1 +/-   23.99  0.040 / 0.040
G08     258.8          14.7                8.6 +/-    1.49      21.6 +/-    1.49  0.040 / 0.040
G10     75.2           54.5                6.3 +/-    0.24       7.5 +/-    0.24  0.130 / 0.280
G11     305.1          22.1                4.7 +/-    2.02       9.8 +/-    2.02  0.140 / 0.420
G14     285.4          69.3                6.5 +/-    0.55       6.9 +/-    0.55  0.040 / 0.050
G18     306.8          38.9                4.4 +/-    0.94       6.5 +/-    0.94  0.040 / 0.060
G20     102.7          31.3                7.0 +/-    1.04      12.0 +/-    1.04  0.080 / 0.210
G27     227.0          10.9                9.7 +/-    2.43      26.6 +/-    2.43  0.080 / 0.190
G31     176.0          39.3                8.7 +/-    1.50      12.8 +/-    1.50  0.170 / 0.380
G32     4.3            68.9                5.6 +/-    0.46       6.0 +/-    0.46  0.180 / 0.330