PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-21:27:50
G01     307.3          33.0                7.5 +/-    1.94      12.4 +/-    1.94  0.100 / 0.140
G10     105.6          40.9               10.3 +/-    0.72      14.8 +/-    0.72  0.170 / 0.170
G11     282.4          28.4                8.1 +/-    0.98      14.7 +/-    0.98  0.070 / 0.090
G14     357.6          66.8                8.7 +/-    0.48       9.4 +/-    0.48  0.070 / 0.120
G18     117.4          13.4               10.6 +/-    1.83      27.5 +/-    1.83  0.130 / 0.170
G22     309.3          24.8                8.5 +/-    1.39      16.6 +/-    1.39  0.080 / 0.130
G25     81.8           16.5               11.1 +/-    1.60      26.6 +/-    1.60  0.040 / 0.030
G31     171.8          62.7               12.0 +/-    0.35      13.4 +/-    0.35  0.030 / 0.030
G32     34.2           53.8                9.0 +/-    1.41      10.9 +/-    1.41  0.030 / 0.030