PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-07:42:40
G08     274.3          20.6                5.9 +/-    1.62      12.8 +/-    1.62  0.080 / 0.280
G10     50.2           59.8                3.6 +/-    0.49       4.1 +/-    0.49  0.100 / 0.180
G14     253.3          62.6                3.5 +/-    1.05       3.9 +/-    1.05  0.090 / 0.210
G18     315.0          27.7                1.1 +/-    2.04       2.1 +/-    2.04  0.160 / 0.210
G20     88.8           40.8                3.6 +/-    0.73       5.1 +/-    0.73  0.030 / 0.030
G21     153.4          21.1                6.1 +/-    1.14      13.0 +/-    1.14  0.020 / 0.030
G24     42.4           14.0                1.8 +/-    2.65       4.7 +/-    2.65  0.030 / 0.020
G27     238.1          20.9                8.6 +/-    1.94      18.5 +/-    1.94  0.030 / 0.020
G31     179.5          23.6                8.2 +/-    2.70      16.6 +/-    2.70  0.050 / 0.050
G32     295.9          74.8                3.6 +/-    0.44       3.8 +/-    0.44  0.050 / 0.060