PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-06:58:00
G08     299.3          22.3                1.1 +/-    1.74       2.3 +/-    1.74  0.060 / 0.120
G10     358.4          62.5               -1.5 +/-    0.50      -1.7 +/-    0.50  0.080 / 0.120
G14     224.9          42.1                5.3 +/-    1.55       7.5 +/-    1.55  0.050 / 0.070
G20     57.6           55.0                0.9 +/-    0.79       1.0 +/-    0.79  0.050 / 0.070
G21     143.5          44.9                3.3 +/-    1.86       4.4 +/-    1.86  0.040 / 0.040
G24     60.7           27.2                0.6 +/-    0.53       1.1 +/-    0.53  0.030 / 0.030
G27     262.0          34.4                3.3 +/-    1.09       5.3 +/-    1.09  0.050 / 0.110
G32     234.6          59.1                2.8 +/-    0.85       3.2 +/-    0.85  0.060 / 0.090