PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-21:43:10
G07     329.8          56.7               10.1 +/-    0.36      11.8 +/-    0.36  0.130 / 0.150
G08     106.4          51.8               11.3 +/-    0.58      14.0 +/-    0.58  0.110 / 0.120
G09     198.9          76.3               10.5 +/-    0.61      10.7 +/-    0.61  0.070 / 0.080
G11     149.5          11.1                6.8 +/-   21.15      18.5 +/-   21.15  0.090 / 0.070
G23     154.3          41.8               10.1 +/-    0.83      14.3 +/-    0.83  0.030 / 0.040
G27     56.1           32.0                8.6 +/-    1.35      14.5 +/-    1.35  0.030 / 0.040
G28     236.2          28.8               11.1 +/-    1.47      20.0 +/-    1.47  0.030 / 0.040
G30     302.9          37.2                9.6 +/-    2.17      14.7 +/-    2.17  0.030 / 0.040