PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-07:12:40
G08     314.3          16.5                4.0 +/-    3.34       9.5 +/-    3.34  0.070 / 0.060
G10     323.3          58.7                5.2 +/-    0.43       5.9 +/-    0.43  0.070 / 0.080
G14     214.8          26.0                5.9 +/-    1.85      11.3 +/-    1.85  0.040 / 0.040
G15     46.0           14.0                1.2 +/-    1.66       3.1 +/-    1.66  0.040 / 0.050
G20     26.6           62.3                6.8 +/-    0.92       7.6 +/-    0.92  0.040 / 0.030
G21     127.9          61.0                6.0 +/-    0.69       6.8 +/-    0.69  0.030 / 0.030
G24     79.8           29.7                5.1 +/-    1.82       9.1 +/-    1.82  0.070 / 0.090
G27     284.3          37.3                4.6 +/-    0.83       7.0 +/-    0.83  0.070 / 0.110
G32     218.7          42.1                7.5 +/-    1.25      10.6 +/-    1.25  0.100 / 0.190