PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-21:13:00
G05     49.5           15.1                7.5 +/-    2.53      18.6 +/-    2.53  0.040 / 0.060
G10     237.8          16.1               14.9 +/-    2.15      36.1 +/-    2.15  0.050 / 0.070
G13     71.1           35.0               10.5 +/-    1.34      16.6 +/-    1.34  0.080 / 0.110
G15     120.1          54.1               11.1 +/-    0.51      13.4 +/-    0.51  0.050 / 0.110
G16     311.7          13.3                7.3 +/-    1.15      18.8 +/-    1.15  0.030 / 0.040
G20     251.1          39.2               12.3 +/-    0.98      18.2 +/-    0.98  0.040 / 0.030
G21     315.6          48.0               10.0 +/-    1.20      12.9 +/-    1.20  0.090 / 0.260
G26     284.8          19.9                8.6 +/-    1.80      19.0 +/-    1.80  0.100 / 0.240
G29     155.2          69.2               11.2 +/-    0.28      11.9 +/-    0.28  0.130 / 0.330