PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-06:27:50
G08     317.2          14.3                1.2 +/-    2.79       3.0 +/-    2.79  0.050 / 0.030
G10     316.8          57.4                2.4 +/-    1.04       2.8 +/-    1.04  0.030 / 0.030
G14     213.3          22.4                4.6 +/-    1.10       9.5 +/-    1.10  0.040 / 0.040
G15     45.7           17.1                2.9 +/-    2.12       6.8 +/-    2.12  0.030 / 0.040
G20     18.8           63.4                4.3 +/-    1.02       4.7 +/-    1.02  0.050 / 0.060
G21     122.6          64.6                4.4 +/-    0.89       4.8 +/-    0.89  0.060 / 0.060
G24     84.3           29.4                6.6 +/-    1.10      11.7 +/-    1.10  0.100 / 0.100
G27     288.9          37.0                4.5 +/-    1.53       7.0 +/-    1.53  0.090 / 0.090
G32     216.4          38.9                5.7 +/-    0.96       8.4 +/-    0.96  0.160 / 0.270