PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-17:42:30
G10     256.7          33.1               10.5 +/-    1.86      17.2 +/-    1.86  0.140 / 0.550
G13     47.6           24.6                9.8 +/-    1.97      19.3 +/-    1.97  0.150 / 0.500
G15     72.1           54.4                9.6 +/-    0.79      11.5 +/-    0.79  0.050 / 0.050
G16     288.4          15.3                7.3 +/-    2.41      18.1 +/-    2.41  0.040 / 0.040
G20     281.9          56.4               11.0 +/-    2.86      12.9 +/-    2.86  0.040 / 0.050
G21     342.8          64.3               10.5 +/-    0.55      11.6 +/-    0.55  0.050 / 0.070
G26     262.1          12.7               10.9 +/-    2.15      28.7 +/-    2.15  0.070 / 0.150
G29     165.6          43.7               11.9 +/-    0.75      16.3 +/-    0.75  0.090 / 0.210