PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-23:12:50
G07     329.4          56.5                8.5 +/-    0.38      10.0 +/-    0.38  0.110 / 0.140
G08     105.4          51.5               11.4 +/-    0.50      14.1 +/-    0.50  0.090 / 0.140
G09     199.8          76.7                9.6 +/-    0.42       9.8 +/-    0.42  0.090 / 0.080
G11     149.0          11.0                7.8 +/-   19.58      21.4 +/-   19.58  0.070 / 0.070
G16     46.1           10.1                7.4 +/-    2.56      20.7 +/-    2.56  0.040 / 0.040
G23     154.4          43.1               10.6 +/-    1.20      14.6 +/-    1.20  0.030 / 0.040
G27     56.5           32.1                8.3 +/-    1.27      13.9 +/-    1.27  0.110 / 0.600
G28     235.9          28.5                9.3 +/-    1.82      16.9 +/-    1.82  0.090 / 0.750
G30     302.6          37.0                8.5 +/-    1.75      13.0 +/-    1.75  0.040 / 0.050