PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-22:13:00
G10     274.9          42.7               10.2 +/-    0.93      14.2 +/-    0.93  0.100 / 0.180
G13     39.1           12.6                6.4 +/-    0.94      16.9 +/-    0.94  0.080 / 0.130
G15     55.2           47.2                8.0 +/-    0.55      10.5 +/-    0.55  0.050 / 0.060
G20     270.6          26.9               13.3 +/-    1.19      24.9 +/-    1.19  0.050 / 0.040
G21     18.8           75.3                7.2 +/-    0.44       7.4 +/-    0.44  0.110 / 0.300
G24     112.5          18.3                9.9 +/-    0.86      22.8 +/-    0.86  0.140 / 0.380
G27     315.2          23.8                7.0 +/-    1.27      14.2 +/-    1.27  0.110 / 0.270
G29     168.9          25.2               11.1 +/-    1.09      21.7 +/-    1.09  0.110 / 0.250
G32     204.9          17.1               17.2 +/-    4.21      40.7 +/-    4.21  0.030 / 0.050