PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-06:12:30
G10     305.4          54.7                2.8 +/-    1.15       3.3 +/-    1.15  0.050 / 0.040
G14     211.0          16.1                3.8 +/-    2.14       9.2 +/-    2.14  0.050 / 0.030
G15     45.5           23.0                2.4 +/-    2.22       5.0 +/-    2.22  0.040 / 0.030
G20     3.4            64.8                3.4 +/-    1.04       3.7 +/-    1.04  0.030 / 0.030
G21     109.7          70.1                3.7 +/-    0.98       3.9 +/-    0.98  0.090 / 0.080
G24     92.1           27.9                5.1 +/-    1.16       9.4 +/-    1.16  0.080 / 0.070
G27     297.1          35.2                3.2 +/-    2.41       5.1 +/-    2.41  0.090 / 0.110
G32     212.9          32.3                4.6 +/-    2.24       7.7 +/-    2.24  0.100 / 0.110