PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-17:58:10
G10     287.7          47.8                8.6 +/-    3.06      11.1 +/-    3.06  0.070 / 0.090
G15     47.4           32.8                8.7 +/-    1.04      14.4 +/-    1.04  0.060 / 0.100
G18     346.9          66.9                8.9 +/-    0.56       9.6 +/-    0.56  0.060 / 0.040
G20     66.1           23.9               10.6 +/-    1.43      21.2 +/-    1.43  0.040 / 0.030
G21     84.9           73.7               10.5 +/-    0.35      10.9 +/-    0.35  0.090 / 0.140
G24     105.6          23.7               10.4 +/-    0.95      20.9 +/-    0.95  0.050 / 0.150
G27     305.6          32.0                9.3 +/-    1.26      15.6 +/-    1.26  0.100 / 0.090
G32     208.8          24.3               11.8 +/-    2.04      23.4 +/-    2.04  0.090 / 0.140