PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-15:58:10
G10     244.4          21.7               10.4 +/-    1.36      21.9 +/-    1.36  0.040 / 0.060
G13     61.0           33.2                7.2 +/-    0.68      11.9 +/-    0.68  0.050 / 0.070
G15     106.7          58.1               10.0 +/-    0.56      11.5 +/-    0.56  0.130 / 0.540
G16     303.9          14.9                5.2 +/-    2.65      12.9 +/-    2.65  0.160 / 0.620
G20     260.4          45.7                9.7 +/-    1.22      12.9 +/-    1.22  0.060 / 0.140
G21     327.6          56.4                6.3 +/-    1.04       7.4 +/-    1.04  0.050 / 0.120
G26     276.9          17.8                7.9 +/-    1.88      18.3 +/-    1.88  0.030 / 0.040
G29     161.1          57.9               11.2 +/-    0.58      12.9 +/-    0.58  0.030 / 0.040