PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-06:57:30
G08     299.3          22.3                3.8 +/-    1.71       8.0 +/-    1.71  0.110 / 0.090
G10     358.4          62.5                0.4 +/-    0.80       0.5 +/-    0.80  0.100 / 0.090
G14     224.9          42.1                4.0 +/-    2.28       5.6 +/-    2.28  0.040 / 0.060
G20     57.6           55.0                1.2 +/-    0.48       1.5 +/-    0.48  0.050 / 0.050
G21     143.5          44.9                3.4 +/-    0.46       4.6 +/-    0.46  0.030 / 0.030
G24     60.7           27.2                1.8 +/-    1.36       3.4 +/-    1.36  0.020 / 0.020
G27     262.0          34.4                3.8 +/-    1.18       6.1 +/-    1.18  0.040 / 0.060
G32     234.6          59.1                2.8 +/-    1.89       3.2 +/-    1.89  0.090 / 0.070