PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-02:27:30
G08     305.1          20.1                5.4 +/-    1.12      12.0 +/-    1.12  0.080 / 0.100
G10     351.2          62.1                9.7 +/-    0.52      10.8 +/-    0.52  0.060 / 0.080
G14     222.3          37.6               11.8 +/-    1.74      17.8 +/-    1.74  0.030 / 0.030
G20     51.1           57.1               10.9 +/-    0.72      12.7 +/-    0.72  0.020 / 0.030
G21     141.3          50.0               12.5 +/-    0.82      15.7 +/-    0.82  0.050 / 0.070
G24     65.6           28.9                9.3 +/-    1.85      16.7 +/-    1.85  0.050 / 0.060
G27     265.7          35.8               11.2 +/-    2.01      17.6 +/-    2.01  0.080 / 0.160
G32     230.6          58.4               10.8 +/-    1.74      12.4 +/-    1.74  0.080 / 0.170