PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-21:57:40
G10     285.0          47.3               10.6 +/-    0.65      13.9 +/-    0.65  0.090 / 0.150
G15     50.3           41.8                8.8 +/-    0.37      12.4 +/-    0.37  0.080 / 0.130
G20     330.4          64.9                9.2 +/-    1.25      10.1 +/-    1.25  0.090 / 0.250
G21     58.7           77.2               12.1 +/-    0.63      12.4 +/-    0.63  0.080 / 0.190
G24     104.3          22.5               11.6 +/-    1.52      24.1 +/-    1.52  0.040 / 0.050
G27     309.8          28.8                9.5 +/-    1.34      17.1 +/-    1.34  0.050 / 0.060
G29     168.7          16.5               13.5 +/-    3.62      32.3 +/-    3.62  0.030 / 0.050
G32     207.1          24.3               13.7 +/-    1.78      27.1 +/-    1.78  0.040 / 0.050