PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-22:12:40
G10     287.7          47.8               15.2 +/-    0.99      19.8 +/-    0.99  0.050 / 0.060
G15     47.6           34.1               11.8 +/-    0.74      19.1 +/-    0.74  0.050 / 0.050
G18     343.4          66.9               14.1 +/-    1.21      15.2 +/-    1.21  0.070 / 0.210
G20     67.0           22.0               11.4 +/-    0.70      23.9 +/-    0.70  0.070 / 0.190
G21     77.0           75.8               15.3 +/-    1.35      15.7 +/-    1.35  0.070 / 0.160
G24     105.6          23.7               15.1 +/-    1.60      30.5 +/-    1.60  0.080 / 0.190
G27     305.3          32.2               14.6 +/-    2.01      24.5 +/-    2.01  0.080 / 0.240
G32     209.2          23.0               19.6 +/-    1.66      40.1 +/-    1.66  0.070 / 0.210