PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-19:27:30
G05     50.3           14.1                9.4 +/-    1.68      23.9 +/-    1.68  0.060 / 0.070
G10     239.5          18.0               16.3 +/-    2.19      37.6 +/-    2.19  0.050 / 0.060
G13     68.0           34.4               11.8 +/-    1.11      19.0 +/-    1.11  0.060 / 0.140
G15     117.5          55.5               13.9 +/-    0.35      16.5 +/-    0.35  0.050 / 0.110
G16     309.1          14.3                9.1 +/-    2.39      23.1 +/-    2.39  0.040 / 0.040
G20     253.9          41.8               13.7 +/-    3.34      19.4 +/-    3.34  0.030 / 0.040
G21     318.1          49.6               11.7 +/-    0.60      14.8 +/-    0.60  0.080 / 0.400
G26     282.1          19.5               10.9 +/-    0.88      24.2 +/-    0.88  0.100 / 0.470
G29     157.3          67.0               14.2 +/-    0.42      15.3 +/-    0.42  0.120 / 0.170