PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-20:27:50
G05     49.9           15.7               10.9 +/-    1.12      26.6 +/-    1.12  0.160 / 0.180
G10     238.7          15.6               14.6 +/-    2.02      35.8 +/-    2.02  0.090 / 0.150
G13     70.4           35.7               12.6 +/-    0.81      19.8 +/-    0.81  0.120 / 0.460
G15     127.7          54.2               13.8 +/-    0.64      16.6 +/-    0.64  0.080 / 0.410
G16     309.9          14.1               10.2 +/-    3.84      26.0 +/-    3.84  0.050 / 0.070
G20     251.8          39.9               14.3 +/-    1.65      20.9 +/-    1.65  0.070 / 0.080
G21     316.9          49.4               12.4 +/-    0.99      15.7 +/-    0.99  0.090 / 0.100
G26     282.8          20.0               10.7 +/-    1.85      23.6 +/-    1.85  0.090 / 0.110
G29     158.5          68.6               13.7 +/-    0.87      14.6 +/-    0.87  0.040 / 0.040