PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-02:57:50
G08     289.7          22.1                9.0 +/-    2.41      18.8 +/-    2.41  0.400 / 0.320
G10     25.0           62.3                7.0 +/-    1.52       7.7 +/-    1.52  0.200 / 0.310
G14     235.4          51.6                9.9 +/-    1.89      12.3 +/-    1.89  0.030 / 0.030
G18     317.8          16.1                4.9 +/-    3.44      11.8 +/-    3.44  0.030 / 0.030
G20     73.9           48.9                6.7 +/-    0.90       8.5 +/-    0.90  0.050 / 0.130
G21     149.9          34.6                8.5 +/-    1.95      13.6 +/-    1.95  0.070 / 0.110
G24     51.0           22.6                5.3 +/-    2.81      10.9 +/-    2.81  0.110 / 0.080
G27     248.4          28.6                9.0 +/-    2.54      16.3 +/-    2.54  0.090 / 0.110
G31     181.6          13.0                7.5 +/-    4.40      19.6 +/-    4.40  0.030 / 0.030
G32     258.9          71.3                7.6 +/-    0.46       8.0 +/-    0.46  0.030 / 0.020