PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-10:57:40
G08     296.7          23.2                5.7 +/-    0.96      11.7 +/-    0.96  0.040 / 0.070
G10     0.3            62.6                5.2 +/-    0.87       5.8 +/-    0.87  0.040 / 0.070
G14     225.9          43.5                7.8 +/-    2.14      10.8 +/-    2.14  0.130 / 0.080
G20     59.5           54.3                5.4 +/-    0.66       6.5 +/-    0.66  0.210 / 0.080
G21     143.8          41.2                6.6 +/-    0.54       9.4 +/-    0.54  0.090 / 0.120
G24     58.5           26.0                5.3 +/-    1.71      10.2 +/-    1.71  0.130 / 0.130
G27     261.6          33.8                7.4 +/-    2.72      12.0 +/-    2.72  0.030 / 0.020
G32     236.1          59.7                6.3 +/-    1.87       7.2 +/-    1.87  0.030 / 0.020