PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-21:57:50
G10     274.8          41.8               15.6 +/-    0.85      22.1 +/-    0.85  0.080 / 0.060
G13     39.7           14.2               12.1 +/-    2.49      30.7 +/-    2.49  0.090 / 0.050
G15     53.0           43.2               13.8 +/-    0.76      19.1 +/-    0.76  0.040 / 0.030
G18     317.7          66.3               14.0 +/-    0.38      15.1 +/-    0.38  0.040 / 0.030
G20     59.7           29.2               12.5 +/-    2.63      22.2 +/-    2.63  0.110 / 0.190
G21     31.4           75.9               13.8 +/-    1.19      14.2 +/-    1.19  0.120 / 0.190
G24     115.4          18.1               17.5 +/-    1.35      40.4 +/-    1.35  0.200 / 0.150
G27     313.7          25.6               12.3 +/-    1.46      23.7 +/-    1.46  0.120 / 0.150
G29     166.8          19.8               19.3 +/-    2.65      42.7 +/-    2.65  0.110 / 0.360
G32     206.5          13.3               25.7 +/-    2.13      66.6 +/-    2.13  0.150 / 0.370