PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-20:27:50
G05     51.3           12.9               10.1 +/-    1.15      26.4 +/-    1.15  0.060 / 0.070
G10     241.3          18.3               20.9 +/-    1.38      47.9 +/-    1.38  0.060 / 0.080
G13     65.9           34.8               14.5 +/-    0.90      23.0 +/-    0.90  0.070 / 0.160
G15     121.8          56.5               18.5 +/-    0.75      21.7 +/-    0.75  0.080 / 0.160
G16     306.5          14.9               11.5 +/-    3.98      28.6 +/-    3.98  0.130 / 0.550
G20     255.5          42.6               18.2 +/-    1.47      25.4 +/-    1.47  0.150 / 0.560
G21     320.6          51.9               16.4 +/-    1.41      20.2 +/-    1.41  0.070 / 0.150
G26     279.1          19.3               15.5 +/-    1.98      34.6 +/-    1.98  0.080 / 0.150
G29     160.5          64.3               18.5 +/-    1.10      20.3 +/-    1.10  0.030 / 0.050