PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-17:28:00
G05     49.2           17.2                9.1 +/-    2.15      21.4 +/-    2.15  0.040 / 0.090
G10     237.8          16.3               13.2 +/-    2.42      31.9 +/-    2.42  0.060 / 0.080
G13     71.0           34.8               11.5 +/-    1.09      18.2 +/-    1.09  0.120 / 0.450
G15     118.2          54.2               12.9 +/-    0.44      15.5 +/-    0.44  0.120 / 0.420
G16     311.0          13.8                9.5 +/-    4.06      24.4 +/-    4.06  0.060 / 0.120
G20     251.8          40.7               12.8 +/-    2.37      18.4 +/-    2.37  0.060 / 0.110
G21     316.0          48.2               11.2 +/-    0.83      14.5 +/-    0.83  0.030 / 0.050
G26     284.6          19.9                9.6 +/-    1.43      21.2 +/-    1.43  0.030 / 0.050
G29     155.7          70.2               13.1 +/-    0.99      13.8 +/-    0.99  0.090 / 0.160