PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-21:42:30
G10     251.8          27.9               14.2 +/-    1.91      26.0 +/-    1.91  0.030 / 0.040
G13     52.1           28.9               10.3 +/-    1.74      18.5 +/-    1.74  0.030 / 0.040
G15     90.3           59.4               12.0 +/-    0.93      13.6 +/-    0.93  0.110 / 0.330
G16     292.4          16.0               11.8 +/-    1.35      28.6 +/-    1.35  0.110 / 0.290
G20     253.5          14.6                6.7 +/-    2.75      16.7 +/-    2.75  0.080 / 0.130
G21     333.8          60.3               11.7 +/-    0.88      13.3 +/-    0.88  0.090 / 0.130
G26     264.8          15.2               13.0 +/-    0.91      32.3 +/-    0.91  0.030 / 0.040
G29     165.6          49.7               13.1 +/-    0.51      16.6 +/-    0.51  0.030 / 0.040