PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-07:42:20
G08     305.6          19.7                3.0 +/-    1.08       6.6 +/-    1.08  0.100 / 0.140
G10     346.1          61.8                3.0 +/-    0.54       3.3 +/-    0.54  0.110 / 0.210
G14     222.6          33.0                5.0 +/-    1.37       8.3 +/-    1.37  0.060 / 0.080
G20     73.1           38.6                4.1 +/-    0.94       6.0 +/-    0.94  0.070 / 0.080
G21     140.6          50.3                6.0 +/-    0.57       7.5 +/-    0.57  0.030 / 0.050
G24     65.6           28.8                4.4 +/-    1.20       7.9 +/-    1.20  0.040 / 0.060
G27     265.1          35.7                6.9 +/-    1.83      10.8 +/-    1.83  0.090 / 0.080
G32     231.3          61.1                5.6 +/-    1.31       6.3 +/-    1.31  0.060 / 0.090