PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-20:57:50
G10     280.5          46.3               10.5 +/-    0.92      13.8 +/-    0.92  0.090 / 0.050
G15     50.9           41.0                8.8 +/-    0.96      12.5 +/-    0.96  0.100 / 0.070
G20     322.9          64.3                9.4 +/-    0.63      10.3 +/-    0.63  0.060 / 0.060
G21     36.0           76.7               11.3 +/-    0.68      11.6 +/-    0.68  0.070 / 0.060
G24     112.5          20.3               10.8 +/-    1.15      23.6 +/-    1.15  0.080 / 0.070
G27     312.8          26.6                9.3 +/-    1.74      17.5 +/-    1.74  0.070 / 0.060
G29     168.1          20.6               12.5 +/-    2.31      27.0 +/-    2.31  0.210 / 0.380
G32     205.8          19.3               14.1 +/-    3.30      31.5 +/-    3.30  0.200 / 0.190