PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/26-14:27:50
G02     64.1           28.4                6.5 +/-    2.13      11.7 +/-    2.13  0.030 / 0.030
G05     53.7           60.4                6.1 +/-    0.63       6.9 +/-    0.63  0.040 / 0.030
G12     181.2          25.4                9.1 +/-    1.87      17.7 +/-    1.87  0.100 / 0.160
G13     122.1          18.5                9.9 +/-    2.06      22.7 +/-    2.06  0.110 / 0.130
G15     159.4          17.7               10.4 +/-    1.63      24.2 +/-    1.63  0.030 / 0.030
G21     276.1          20.2                4.5 +/-    1.15       9.8 +/-    1.15  0.030 / 0.030
G25     230.0          48.2                5.5 +/-    3.16       7.1 +/-    3.16  0.180 / 0.370
G29     331.7          58.8                4.9 +/-    0.97       5.6 +/-    0.97  0.210 / 0.300