PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-14:57:30
G05     51.9           10.8                5.3 +/-    2.97      14.5 +/-    2.97  0.230 / 0.200
G10     241.5          17.6                7.6 +/-    1.68      17.6 +/-    1.68  0.260 / 0.370
G13     67.0           35.9                5.6 +/-    1.26       8.7 +/-    1.26  0.030 / 0.030
G15     107.5          56.0                8.2 +/-    0.63       9.6 +/-    0.63  0.030 / 0.030
G16     310.8          12.4                3.9 +/-    2.37      10.4 +/-    2.37  0.260 / 0.290
G18     255.0          50.0                7.1 +/-    4.06       8.9 +/-    4.06  0.120 / 0.260
G20     31.2           61.5                5.7 +/-    0.63       6.4 +/-    0.63  0.050 / 0.070
G26     281.8          18.7                5.3 +/-    0.85      12.1 +/-    0.85  0.060 / 0.080
G29     158.2          58.7                8.9 +/-    0.37      10.2 +/-    0.37  0.100 / 0.140