PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-17:57:40
G05     48.2           19.3               11.0 +/-    1.74      24.5 +/-    1.74  0.050 / 0.090
G10     235.8          14.0               20.6 +/-    2.89      52.5 +/-    2.89  0.070 / 0.070
G13     74.8           35.2               15.4 +/-    1.14      24.3 +/-    1.14  0.190 / 0.460
G15     124.1          52.4               18.4 +/-    0.69      22.5 +/-    0.69  0.150 / 0.490
G16     313.7          12.7                9.3 +/-    2.74      24.4 +/-    2.74  0.050 / 0.110
G20     248.7          38.2               19.2 +/-    1.37      28.9 +/-    1.37  0.060 / 0.100
G21     313.0          46.1               15.3 +/-    0.87      20.2 +/-    0.87  0.030 / 0.040
G26     287.7          20.2               10.1 +/-    2.12      22.1 +/-    2.12  0.030 / 0.040
G29     152.9          73.6               18.1 +/-    0.56      18.8 +/-    0.56  0.180 / 0.150