PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-21:43:10
G10     276.0          42.4               15.0 +/-    1.40      21.0 +/-    1.40  0.040 / 0.040
G13     39.4           13.3               10.5 +/-    1.35      27.2 +/-    1.35  0.040 / 0.040
G15     52.2           42.2               13.3 +/-    1.05      18.6 +/-    1.05  0.140 / 0.300
G18     320.5          66.5               13.0 +/-    1.10      14.1 +/-    1.10  0.130 / 0.290
G20     60.4           28.6               11.9 +/-    1.74      21.6 +/-    1.74  0.130 / 0.320
G21     36.4           76.2               14.5 +/-    0.68      14.9 +/-    0.68  0.150 / 0.290
G24     114.5          18.7               16.9 +/-    1.50      38.4 +/-    1.50  0.080 / 0.340
G27     313.0          26.3               13.5 +/-    1.05      25.5 +/-    1.05  0.080 / 0.250
G29     166.7          18.6               16.2 +/-    1.95      37.0 +/-    1.95  0.080 / 0.170
G32     206.7          14.1               16.6 +/-    2.61      42.2 +/-    2.61  0.080 / 0.160