PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-00:57:40
G08     276.3          19.5                9.5 +/-    1.38      21.2 +/-    1.38  0.100 / 0.240
G10     54.7           58.8                8.7 +/-    0.71      10.0 +/-    0.71  0.180 / 0.260
G14     254.8          61.9               10.2 +/-    0.63      11.4 +/-    0.63  0.050 / 0.050
G18     314.7          28.5                6.6 +/-    1.05      12.0 +/-    1.05  0.040 / 0.050
G20     91.1           39.3                7.8 +/-    1.16      11.4 +/-    1.16  0.120 / 0.170
G21     154.5          20.8                8.6 +/-    2.05      18.5 +/-    2.05  0.160 / 0.140
G24     42.3           13.9                5.2 +/-    3.29      13.3 +/-    3.29  0.040 / 0.030
G27     235.6          19.5               10.5 +/-    3.98      23.3 +/-    3.98  0.030 / 0.030
G31     178.0          26.7               11.3 +/-    1.42      21.2 +/-    1.42  0.130 / 0.170
G32     319.4          76.0                9.5 +/-    0.43       9.8 +/-    0.43  0.130 / 0.200