PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-20:42:50
G10     274.4          43.5               12.6 +/-    1.22      17.3 +/-    1.22  0.100 / 0.140
G13     39.1           12.5                8.8 +/-    1.68      23.3 +/-    1.68  0.130 / 0.140
G15     53.9           44.6               11.0 +/-    0.79      14.9 +/-    0.79  0.040 / 0.050
G20     311.9          63.0               12.4 +/-    1.04      13.8 +/-    1.04  0.040 / 0.040
G21     17.6           74.7               14.4 +/-    1.09      14.8 +/-    1.09  0.140 / 0.280
G24     116.9          17.6               15.2 +/-    2.12      35.5 +/-    2.12  0.170 / 0.330
G27     316.0          23.1                9.6 +/-    1.56      19.6 +/-    1.56  0.040 / 0.060
G29     167.8          25.6               16.4 +/-    2.12      31.6 +/-    2.12  0.040 / 0.050
G32     204.8          14.7               20.0 +/-    2.29      50.2 +/-    2.29  0.120 / 0.280