PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/10-08:57:30
G07     314.6          51.3                4.4 +/-    1.15       5.4 +/-    1.15  0.040 / 0.050
G08     129.1          42.4                5.5 +/-    0.91       7.6 +/-    0.91  0.060 / 0.060
G09     287.1          81.7                6.8 +/-    0.28       6.9 +/-    0.28  0.040 / 0.080
G16     42.8           19.9                2.1 +/-    2.29       4.5 +/-    2.29  0.050 / 0.060
G23     146.2          56.0                6.4 +/-    0.68       7.5 +/-    0.68  0.040 / 0.030
G27     75.1           37.1                3.7 +/-    1.10       5.7 +/-    1.10  0.040 / 0.020
G30     289.0          24.7                4.8 +/-    1.51       9.5 +/-    1.51  0.160 / 0.260