PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-22:12:50
G10     292.7          49.7               13.0 +/-    2.72      16.4 +/-    2.72  0.120 / 0.070
G14     209.4          10.8               -4.0 +/-   25.44     -10.9 +/-   25.44  0.110 / 0.080
G15     46.6           30.8               11.6 +/-    0.98      20.0 +/-    0.98  0.050 / 0.030
G18     352.3          66.5               13.4 +/-    0.44      14.4 +/-    0.44  0.040 / 0.030
G20     69.6           19.6               11.0 +/-    1.35      24.4 +/-    1.35  0.080 / 0.140
G21     91.0           74.1               14.6 +/-    0.44      15.2 +/-    0.44  0.070 / 0.120
G24     101.9          25.4               14.8 +/-    1.13      28.6 +/-    1.13  0.050 / 0.090
G27     301.6          34.0               11.8 +/-    0.85      19.1 +/-    0.85  0.060 / 0.070
G32     210.4          26.5               18.0 +/-    1.32      33.9 +/-    1.32  0.070 / 0.190