PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/01-20:58:10
G10     264.0          35.6               19.9 +/-    1.22      31.2 +/-    1.22  0.040 / 0.050
G13     44.0           21.9               14.0 +/-    1.80      29.5 +/-    1.80  0.040 / 0.050
G15     62.3           50.6               18.5 +/-    0.96      23.2 +/-    0.96  0.170 / 0.470
G16     285.7          11.9               20.4 +/-    2.27      54.6 +/-    2.27  0.170 / 0.700
G18     295.6          63.6               17.5 +/-    0.73      19.3 +/-    0.73  0.120 / 0.300
G20     52.6           36.9               15.7 +/-    0.67      24.1 +/-    0.67  0.110 / 0.330
G21     1.5            71.1               19.2 +/-    0.39      20.2 +/-    0.39  0.050 / 0.110
G24     123.8          12.3                7.1 +/-   51.18      18.8 +/-   51.18  0.060 / 0.090
G27     319.0          18.1               16.8 +/-    1.35      38.6 +/-    1.35  0.110 / 0.150
G29     165.7          29.5               20.0 +/-    1.63      35.4 +/-    1.63  0.100 / 0.140