PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-08:12:30
G03     235.8          68.5                4.3 +/-    0.38       4.6 +/-    0.38  0.040 / 0.050
G09     303.0          17.4                6.1 +/-    3.93      14.3 +/-    3.93  0.040 / 0.050
G14     99.1           14.9                3.6 +/-    2.16       8.9 +/-    2.16  0.050 / 0.060
G16     126.4          58.3                5.6 +/-    0.33       6.4 +/-    0.33  0.040 / 0.040
G22     195.9          55.2                4.8 +/-    0.43       5.7 +/-    0.43  0.170 / 0.280
G23     323.0          52.9                3.7 +/-    0.54       4.6 +/-    0.54  0.250 / 0.330
G26     69.5           51.6                3.9 +/-    0.84       4.8 +/-    0.84  0.320 / 0.240
G31     52.8           18.2                2.7 +/-    2.69       6.1 +/-    2.69  0.130 / 0.150