PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/31-23:12:40
G05     51.2           11.9                6.6 +/-    0.58      17.7 +/-    0.58  0.110 / 0.150
G10     240.3          17.2               12.3 +/-    1.86      29.1 +/-    1.86  0.140 / 0.210
G13     67.7           35.3                7.4 +/-    1.12      11.7 +/-    1.12  0.100 / 0.580
G15     118.7          55.8                9.3 +/-    0.68      11.0 +/-    0.68  0.120 / 0.510
G16     307.1          15.0                6.3 +/-    3.31      15.7 +/-    3.31  0.120 / 0.320
G20     247.0          19.8                7.3 +/-    1.15      16.1 +/-    1.15  0.090 / 0.350
G21     318.3          50.4                9.8 +/-    1.12      12.3 +/-    1.12  0.060 / 0.070
G26     279.3          19.9                7.8 +/-    1.08      17.3 +/-    1.08  0.060 / 0.070
G29     160.4          66.4                9.7 +/-    1.35      10.5 +/-    1.35  0.030 / 0.040