PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-04:42:50
G05     49.2           15.3                3.5 +/-    2.43       8.7 +/-    2.43  0.100 / 0.310
G10     236.3          12.3                8.1 +/-    2.10      21.4 +/-    2.10  0.100 / 0.300
G13     75.9           36.6                5.4 +/-    0.79       8.3 +/-    0.79  0.130 / 0.270
G15     123.5          52.4                6.8 +/-    0.99       8.3 +/-    0.99  0.110 / 0.300
G16     313.5          12.8                4.7 +/-    2.46      12.3 +/-    2.46  0.330 / 0.440
G20     261.6          61.5                6.6 +/-    0.63       7.4 +/-    0.63  0.370 / 0.480
G21     313.0          46.9                4.6 +/-    1.41       6.0 +/-    1.41  0.160 / 0.390
G25     199.9          11.1                6.9 +/-    2.53      18.8 +/-    2.53  0.140 / 0.330
G26     285.9          20.8                4.9 +/-    2.09      10.5 +/-    2.09  0.030 / 0.040
G29     156.3          72.7                8.4 +/-    1.62       8.8 +/-    1.62  0.030 / 0.040