PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-10:58:10
G05     51.1           11.5                2.9 +/-    1.51       7.8 +/-    1.51  0.120 / 0.240
G10     239.7          15.9                5.1 +/-    1.79      12.4 +/-    1.79  0.090 / 0.280
G13     69.8           36.2                5.5 +/-    0.44       8.6 +/-    0.44  0.200 / 0.210
G15     112.1          55.1                7.7 +/-    0.36       9.2 +/-    0.36  0.110 / 0.250
G16     310.9          13.1                2.5 +/-    1.87       6.4 +/-    1.87  0.040 / 0.040
G20     24.9           66.3                4.2 +/-    0.80       4.6 +/-    0.80  0.030 / 0.050
G21     320.7          52.6                4.2 +/-    1.42       5.1 +/-    1.42  0.030 / 0.040
G26     282.2          19.7                4.0 +/-    1.69       8.8 +/-    1.69  0.030 / 0.030
G29     158.2          64.1                6.4 +/-    1.20       7.0 +/-    1.20  0.060 / 0.070