PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/12-09:12:50
G01     270.2          40.9                6.1 +/-    1.10       8.7 +/-    1.10  0.050 / 0.050
G03     316.0          30.4                4.4 +/-    1.87       7.7 +/-    1.87  0.050 / 0.060
G10     130.1          16.5                4.9 +/-    1.39      11.7 +/-    1.39  0.080 / 0.090
G11     250.5          19.9                4.6 +/-    2.13      10.3 +/-    2.13  0.050 / 0.080
G14     39.6           52.6                3.8 +/-    0.50       4.6 +/-    0.50  0.060 / 0.070
G18     234.4          38.9                6.7 +/-    2.06       9.9 +/-    2.06  0.050 / 0.080
G22     314.1          55.1                3.7 +/-    1.81       4.4 +/-    1.81  0.110 / 0.160
G25     52.2           16.7                1.4 +/-    0.98       3.4 +/-    0.98  0.100 / 0.170
G31     52.4           70.9                4.5 +/-    0.35       4.7 +/-    0.35  0.230 / 0.280
G32     65.7           30.6                3.5 +/-    0.41       6.1 +/-    0.41  0.190 / 0.310