PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-15:57:30
G01     319.4          16.7                5.8 +/-    2.56      13.8 +/-    2.56  0.030 / 0.040
G08     260.6          13.8                7.2 +/-    1.47      18.5 +/-    1.47  0.050 / 0.040
G10     77.1           54.4                7.7 +/-    0.97       9.2 +/-    0.97  0.050 / 0.060
G11     306.2          20.8                6.3 +/-    1.70      13.6 +/-    1.70  0.060 / 0.060
G14     289.7          69.5                8.6 +/-    0.47       9.1 +/-    0.47  0.210 / 0.280
G31     176.2          40.7               10.8 +/-    1.33      15.5 +/-    1.33  0.160 / 0.260
G32     5.7            68.1                6.6 +/-    0.43       7.1 +/-    0.43  0.120 / 0.380