PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-10:12:50
G08     272.0          20.4                5.8 +/-    1.59      12.6 +/-    1.59  0.100 / 0.220
G10     52.3           59.5                5.9 +/-    0.62       6.8 +/-    0.62  0.100 / 0.220
G14     255.9          63.7                8.0 +/-    0.52       8.8 +/-    0.52  0.040 / 0.030
G18     314.3          29.4                5.7 +/-    1.31      10.1 +/-    1.31  0.030 / 0.030
G20     90.1           40.0                5.3 +/-    0.92       7.8 +/-    0.92  0.030 / 0.020
G21     153.3          18.6                3.9 +/-    1.34       8.9 +/-    1.34  0.030 / 0.030
G24     41.5           12.6                3.0 +/-    2.88       7.8 +/-    2.88  0.050 / 0.050
G27     237.6          20.1                6.1 +/-    1.67      13.4 +/-    1.67  0.050 / 0.050
G31     180.2          23.8                5.7 +/-    2.82      11.4 +/-    2.82  0.110 / 0.230
G32     295.2          74.1                8.2 +/-    0.44       8.5 +/-    0.44  0.130 / 0.370