PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-16:12:30
G10     257.7          32.6                9.9 +/-    2.17      16.5 +/-    2.17  0.150 / 0.320
G13     47.1           24.7                2.8 +/-    0.93       5.4 +/-    0.93  0.110 / 0.320
G15     74.4           56.3                8.2 +/-    0.71       9.6 +/-    0.71  0.050 / 0.050
G16     288.8          14.4                6.8 +/-    2.70      17.0 +/-    2.70  0.050 / 0.040
G20     281.5          55.7               10.3 +/-    0.96      12.1 +/-    0.96  0.040 / 0.080
G21     349.5          66.9                6.5 +/-    0.74       7.0 +/-    0.74  0.030 / 0.070
G26     262.5          12.2                6.2 +/-    4.56      16.5 +/-    4.56  0.060 / 0.220
G29     165.7          40.4               11.7 +/-    0.78      16.9 +/-    0.78  0.070 / 0.210