PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-16:43:10
G05     52.4           10.4                7.9 +/-    1.37      21.8 +/-    1.37  0.160 / 0.320
G10     242.7          18.7               11.5 +/-    2.09      26.1 +/-    2.09  0.120 / 0.330
G13     65.1           35.5                8.8 +/-    0.41      13.9 +/-    0.41  0.100 / 0.210
G15     104.9          56.5               11.3 +/-    0.38      13.3 +/-    0.38  0.110 / 0.230
G16     310.5          12.1                7.4 +/-    2.42      19.7 +/-    2.42  0.030 / 0.050
G18     256.7          50.8               13.3 +/-    1.30      16.7 +/-    1.30  0.030 / 0.050
G20     33.7           59.1                9.4 +/-    0.39      10.7 +/-    0.39  0.040 / 0.060
G21     327.0          56.5                9.9 +/-    0.90      11.6 +/-    0.90  0.040 / 0.070
G26     281.3          18.1                8.5 +/-    0.80      19.5 +/-    0.80  0.040 / 0.110
G29     158.3          55.5               13.5 +/-    1.12      16.0 +/-    1.12  0.050 / 0.120