PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-19:12:30
G05     49.8           15.1                9.3 +/-    1.78      23.2 +/-    1.78  0.040 / 0.070
G10     238.6          17.1               15.6 +/-    1.90      36.8 +/-    1.90  0.050 / 0.070
G13     69.5           34.7               12.4 +/-    1.09      19.8 +/-    1.09  0.060 / 0.110
G15     118.6          54.8               12.6 +/-    0.43      15.0 +/-    0.43  0.070 / 0.140
G16     310.1          14.0                9.5 +/-    1.90      24.3 +/-    1.90  0.040 / 0.040
G20     252.7          41.0               13.7 +/-    2.68      19.6 +/-    2.68  0.030 / 0.040
G21     316.9          48.8               11.2 +/-    0.66      14.3 +/-    0.66  0.110 / 0.370
G26     283.3          19.7                9.5 +/-    1.42      21.0 +/-    1.42  0.120 / 0.470
G29     156.4          68.4               12.7 +/-    0.71      13.5 +/-    0.71  0.360 / 0.220