PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-10:12:40
G05     51.6           10.8                3.1 +/-    1.94       8.4 +/-    1.94  0.110 / 0.120
G10     241.0          18.7                4.3 +/-    1.81       9.8 +/-    1.81  0.110 / 0.140
G13     66.1           34.5                4.9 +/-    1.21       7.8 +/-    1.21  0.130 / 0.230
G15     110.8          56.2                6.3 +/-    0.73       7.4 +/-    0.73  0.270 / 0.260
G16     311.0          12.5                1.9 +/-    1.62       5.1 +/-    1.62  0.040 / 0.050
G20     255.5          42.7                6.6 +/-    1.95       9.2 +/-    1.95  0.040 / 0.050
G21     326.9          56.0                5.0 +/-    0.40       5.9 +/-    0.40  0.060 / 0.110
G26     285.5          17.8                4.0 +/-    1.07       9.4 +/-    1.07  0.060 / 0.110
G29     156.7          60.0                7.3 +/-    0.62       8.3 +/-    0.62  0.030 / 0.030