PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-17:27:40
G10     301.9          52.9                6.6 +/-    1.15       8.0 +/-    1.15  0.080 / 0.070
G14     211.3          15.4               10.0 +/-    2.39      24.7 +/-    2.39  0.050 / 0.070
G15     45.5           23.8                6.7 +/-    2.58      13.4 +/-    2.58  0.100 / 0.200
G18     10.4           64.8                7.2 +/-    0.79       7.8 +/-    0.79  0.100 / 0.190
G20     73.1           17.8                6.3 +/-    1.94      14.6 +/-    1.94  0.080 / 0.100
G21     112.1          66.5                9.2 +/-    0.67      10.0 +/-    0.67  0.110 / 0.120
G24     95.0           27.9                7.9 +/-    1.73      14.4 +/-    1.73  0.120 / 0.330
G27     295.0          36.3                8.5 +/-    2.95      13.2 +/-    2.95  0.210 / 0.320
G32     212.6          34.4                9.7 +/-    2.67      15.5 +/-    2.67  0.030 / 0.030