PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-21:28:00
G10     268.8          39.4               11.6 +/-    1.06      17.0 +/-    1.06  0.150 / 0.210
G13     41.1           16.8                7.6 +/-    1.77      18.2 +/-    1.77  0.140 / 0.210
G15     62.0           52.9                9.4 +/-    0.71      11.5 +/-    0.71  0.270 / 0.520
G16     276.8          11.7               11.7 +/-    2.11      31.6 +/-    2.11  0.320 / 0.580
G20     300.6          61.0               10.2 +/-    0.63      11.5 +/-    0.63  0.120 / 0.260
G21     6.7            72.7               11.9 +/-    0.86      12.4 +/-    0.86  0.130 / 0.220
G24     116.7          15.4               11.5 +/-    1.29      28.2 +/-    1.29  0.060 / 0.100
G27     318.4          19.3                9.3 +/-    1.99      20.9 +/-    1.99  0.080 / 0.110
G29     168.2          30.1               12.4 +/-    1.15      21.7 +/-    1.15  0.050 / 0.040
G32     204.2          11.6                2.3 +/-   40.46       6.3 +/-   40.46  0.050 / 0.050