PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-18:13:00
G05     49.2           16.7                5.9 +/-    1.24      14.1 +/-    1.24  0.040 / 0.070
G10     237.8          16.3               11.2 +/-    1.58      27.0 +/-    1.58  0.060 / 0.090
G13     71.0           34.9                8.5 +/-    1.68      13.5 +/-    1.68  0.080 / 0.120
G15     119.3          54.2                9.0 +/-    0.43      10.8 +/-    0.43  0.050 / 0.130
G16     311.1          13.7                6.1 +/-    2.20      15.8 +/-    2.20  0.030 / 0.040
G20     251.6          40.4               10.9 +/-    2.58      15.8 +/-    2.58  0.030 / 0.030
G21     315.9          48.1                8.3 +/-    0.76      10.8 +/-    0.76  0.130 / 0.350
G26     284.6          19.9                6.3 +/-    2.43      13.9 +/-    2.43  0.120 / 0.400
G29     155.7          70.1               10.3 +/-    0.56      10.9 +/-    0.56  0.090 / 0.130