PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-09:42:30
G03     236.6          67.5                5.3 +/-    0.44       5.7 +/-    0.44  0.110 / 0.320
G09     304.6          20.4                2.2 +/-    1.84       4.9 +/-    1.84  0.120 / 0.250
G14     99.8           16.0                4.3 +/-    1.95      10.3 +/-    1.95  0.050 / 0.040
G16     119.2          60.1                7.6 +/-    0.55       8.6 +/-    0.55  0.040 / 0.060
G22     192.8          53.3                6.6 +/-    0.25       8.0 +/-    0.25  0.030 / 0.030
G23     321.6          51.5                5.3 +/-    1.00       6.6 +/-    1.00  0.040 / 0.040
G26     65.0           49.3                6.0 +/-    0.70       7.6 +/-    0.70  0.050 / 0.070
G31     53.5           16.6                3.1 +/-    2.73       7.5 +/-    2.73  0.040 / 0.060