PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-05:57:50
G03     252.6          68.8                2.4 +/-    1.25       2.5 +/-    1.25  0.040 / 0.050
G09     303.0          19.3                1.1 +/-    1.43       2.5 +/-    1.43  0.040 / 0.030
G14     97.5           16.6                3.1 +/-    1.66       7.5 +/-    1.66  0.110 / 0.230
G16     125.0          57.7                4.0 +/-    1.00       4.6 +/-    1.00  0.100 / 0.230
G22     200.0          59.0                4.2 +/-    0.79       4.8 +/-    0.79  0.050 / 0.050
G23     316.5          46.1                2.3 +/-    0.73       3.1 +/-    0.73  0.050 / 0.060
G26     70.2           51.0                3.3 +/-    0.46       4.1 +/-    0.46  0.030 / 0.040
G31     51.6           19.4                1.5 +/-    3.10       3.2 +/-    3.10  0.040 / 0.040