PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-15:12:40
G05     50.1           14.4                5.1 +/-    1.85      12.9 +/-    1.85  0.210 / 0.180
G10     238.6          14.4                6.6 +/-    1.33      16.8 +/-    1.33  0.190 / 0.220
G13     72.4           36.8                7.6 +/-    0.80      11.6 +/-    0.80  0.030 / 0.040
G15     115.6          54.3                8.4 +/-    0.57      10.1 +/-    0.57  0.040 / 0.030
G16     314.9          11.0                1.6 +/-   10.48       4.4 +/-   10.48  0.110 / 0.220
G18     250.0          46.8                7.8 +/-    4.29      10.3 +/-    4.29  0.090 / 0.170
G20     27.5           65.3                6.3 +/-    0.40       6.8 +/-    0.40  0.040 / 0.100
G21     321.6          53.5                5.5 +/-    0.66       6.6 +/-    0.66  0.050 / 0.060
G26     286.4          19.3                6.1 +/-    0.95      13.8 +/-    0.95  0.040 / 0.040
G29     155.5          63.2                7.6 +/-    0.19       8.4 +/-    0.19  0.040 / 0.050