PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-06:58:10
G03     236.3          66.6                4.5 +/-    0.57       4.8 +/-    0.57  0.040 / 0.050
G09     306.0          22.9                4.0 +/-    1.88       8.2 +/-    1.88  0.040 / 0.050
G14     101.6          13.5                3.2 +/-    1.59       8.2 +/-    1.59  0.150 / 0.360
G16     114.6          60.9                5.8 +/-    0.51       6.5 +/-    0.51  0.150 / 0.420
G22     194.9          53.1                5.8 +/-    1.05       7.1 +/-    1.05  0.050 / 0.050
G23     321.1          50.9                4.5 +/-    0.49       5.6 +/-    0.49  0.050 / 0.040
G26     62.7           48.3                5.2 +/-    0.61       6.7 +/-    0.61  0.050 / 0.050
G31     54.4           15.4                1.5 +/-    2.16       3.6 +/-    2.16  0.040 / 0.040