PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-13:28:10
G10     245.4          24.3                4.2 +/-    0.73       8.4 +/-    0.73  0.150 / 0.450
G13     58.9           31.6                3.9 +/-    1.72       6.7 +/-    1.72  0.130 / 0.440
G15     92.9           56.4                5.7 +/-    1.29       6.7 +/-    1.29  0.060 / 0.110
G16     301.2          15.8                3.4 +/-    1.86       8.3 +/-    1.86  0.060 / 0.100
G20     264.5          49.7                5.6 +/-    3.57       7.1 +/-    3.57  0.030 / 0.030
G21     328.4          56.3                3.0 +/-    0.44       3.5 +/-    0.44  0.030 / 0.030
G26     274.9          17.5                3.4 +/-    3.64       7.9 +/-    3.64  0.030 / 0.050
G29     161.5          58.5                7.1 +/-    0.52       8.1 +/-    0.52  0.030 / 0.050