PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-13:27:50
G08     296.8          23.4                3.0 +/-    1.76       6.1 +/-    1.76  0.030 / 0.040
G10     358.5          62.6                3.1 +/-    0.39       3.4 +/-    0.39  0.040 / 0.040
G14     225.5          42.9                6.2 +/-    1.41       8.6 +/-    1.41  0.070 / 0.100
G20     58.4           54.7                3.5 +/-    0.57       4.2 +/-    0.57  0.080 / 0.090
G21     143.1          39.7                6.0 +/-    0.84       8.7 +/-    0.84  0.060 / 0.090
G24     58.4           25.6                3.6 +/-    1.05       7.0 +/-    1.05  0.050 / 0.090
G27     263.0          33.9                3.9 +/-    0.85       6.4 +/-    0.85  0.060 / 0.090
G32     235.8          60.7                5.1 +/-    0.74       5.8 +/-    0.74  0.050 / 0.100