PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-22:58:10
G10     249.6          26.0               14.0 +/-    2.31      26.8 +/-    2.31  0.040 / 0.040
G13     54.5           30.4                9.2 +/-    1.43      16.0 +/-    1.43  0.040 / 0.040
G15     94.6           59.2               11.5 +/-    1.10      13.2 +/-    1.10  0.120 / 0.340
G16     295.2          16.1                9.4 +/-    1.94      22.9 +/-    1.94  0.140 / 0.320
G20     254.7          23.0               15.2 +/-    3.15      31.0 +/-    3.15  0.100 / 0.120
G21     330.9          58.6                9.2 +/-    0.40      10.6 +/-    0.40  0.070 / 0.130
G26     267.3          16.2               13.2 +/-    1.33      31.9 +/-    1.33  0.030 / 0.040
G29     164.9          52.5               11.4 +/-    1.06      13.9 +/-    1.06  0.030 / 0.040