PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/26-15:57:50
G05     49.4           16.3                7.4 +/-    1.86      17.9 +/-    1.86  0.090 / 0.180
G10     237.4          13.0               10.4 +/-    2.65      27.0 +/-    2.65  0.110 / 0.160
G13     74.8           37.1                8.6 +/-    1.28      13.1 +/-    1.28  0.050 / 0.050
G15     119.0          53.3                9.9 +/-    0.74      12.0 +/-    0.74  0.040 / 0.050
G18     248.0          45.1                9.2 +/-    1.95      12.4 +/-    1.95  0.110 / 0.170
G20     26.4           66.6                7.9 +/-    0.29       8.5 +/-    0.29  0.110 / 0.180
G21     318.8          51.8                8.0 +/-    0.70       9.8 +/-    0.70  0.040 / 0.040
G26     288.8          19.3                7.2 +/-    0.84      16.1 +/-    0.84  0.040 / 0.040
G29     153.9          64.7               10.5 +/-    0.35      11.5 +/-    0.35  0.060 / 0.080