PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-06:28:00
G08     315.9          15.3                3.4 +/-    2.53       8.4 +/-    2.53  0.050 / 0.090
G10     320.0          58.1                2.1 +/-    0.82       2.5 +/-    0.82  0.060 / 0.090
G14     214.0          24.2                6.1 +/-    2.21      12.1 +/-    2.21  0.030 / 0.040
G15     45.8           15.5                1.9 +/-    2.53       4.6 +/-    2.53  0.040 / 0.030
G20     22.7           62.9                2.5 +/-    0.52       2.8 +/-    0.52  0.040 / 0.050
G21     125.4          63.0                5.5 +/-    0.91       6.1 +/-    0.91  0.040 / 0.050
G24     82.1           29.6                4.2 +/-    0.88       7.4 +/-    0.88  0.100 / 0.290
G27     286.5          37.3                3.3 +/-    1.41       5.0 +/-    1.41  0.130 / 0.290
G32     217.5          40.7                5.8 +/-    0.65       8.4 +/-    0.65  0.180 / 0.380