PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-21:13:10
G10     258.5          33.0               18.1 +/-    1.19      29.9 +/-    1.19  0.040 / 0.060
G13     46.5           24.2               11.4 +/-    0.86      22.7 +/-    0.86  0.040 / 0.050
G15     77.9           58.6               15.4 +/-    0.74      17.7 +/-    0.74  0.150 / 0.310
G16     286.3          14.5               14.1 +/-    1.25      35.4 +/-    1.25  0.180 / 0.300
G20     282.7          56.1               16.7 +/-    0.84      19.6 +/-    0.84  0.120 / 0.420
G21     346.0          66.2               12.5 +/-    1.00      13.5 +/-    1.00  0.130 / 0.380
G26     259.5          11.8               20.8 +/-    1.92      55.9 +/-    1.92  0.070 / 0.180
G27     321.9          11.3               -3.5 +/-   38.24      -9.5 +/-   38.24  0.060 / 0.210
G29     166.9          40.8               19.7 +/-    1.19      28.2 +/-    1.19  0.030 / 0.040