PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-10:57:50
G05     50.9           11.9                3.0 +/-    2.10       7.9 +/-    2.10  0.200 / 0.130
G10     239.4          15.6                4.4 +/-    1.27      10.9 +/-    1.27  0.220 / 0.120
G13     70.3           36.3                6.3 +/-    1.39       9.7 +/-    1.39  0.040 / 0.060
G15     112.9          54.9                7.0 +/-    0.59       8.4 +/-    0.59  0.030 / 0.040
G16     311.3          12.9                3.0 +/-    4.22       7.7 +/-    4.22  0.170 / 0.360
G20     24.4           66.7                3.9 +/-    0.96       4.3 +/-    0.96  0.180 / 0.330
G21     320.2          52.3                2.5 +/-    0.80       3.1 +/-    0.80  0.060 / 0.050
G26     282.7          19.7                3.8 +/-    0.78       8.4 +/-    0.78  0.040 / 0.050
G29     157.9          64.6                7.2 +/-    0.29       7.9 +/-    0.29  0.040 / 0.090