PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-15:27:50
G10     243.3          19.4                7.6 +/-    1.25      17.1 +/-    1.25  0.060 / 0.030
G13     64.1           35.1                7.8 +/-    1.20      12.4 +/-    1.20  0.050 / 0.040
G15     102.8          56.6                8.0 +/-    0.84       9.4 +/-    0.84  0.110 / 0.140
G16     308.9          12.7                5.4 +/-    3.13      14.1 +/-    3.13  0.110 / 0.120
G18     257.9          51.7                8.3 +/-    2.94      10.3 +/-    2.94  0.060 / 0.090
G20     33.6           59.1                7.0 +/-    0.67       8.0 +/-    0.67  0.060 / 0.080
G21     329.4          57.8                5.8 +/-    0.40       6.7 +/-    0.40  0.030 / 0.050
G26     279.6          18.1                6.8 +/-    0.90      15.6 +/-    0.90  0.030 / 0.050
G29     159.2          55.6                8.5 +/-    0.52      10.1 +/-    0.52  0.280 / 0.460