PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-17:13:10
G08     318.7          12.7                7.5 +/-    2.23      19.8 +/-    2.23  0.050 / 0.080
G10     309.3          55.1                6.9 +/-    1.81       8.2 +/-    1.81  0.040 / 0.060
G14     212.9          19.6               10.8 +/-    1.23      23.9 +/-    1.23  0.180 / 0.300
G15     45.4           19.6                6.9 +/-    2.31      15.4 +/-    2.31  0.130 / 0.290
G18     20.3           63.2                7.8 +/-    0.97       8.7 +/-    0.97  0.050 / 0.080
G20     76.5           15.0                6.2 +/-    3.79      15.5 +/-    3.79  0.070 / 0.060
G24     89.6           29.2                9.4 +/-    1.86      16.7 +/-    1.86  0.210 / 0.430
G27     289.2          37.5                5.1 +/-    1.90       7.7 +/-    1.90  0.320 / 0.480
G32     215.0          39.3                9.6 +/-    1.15      14.1 +/-    1.15  0.150 / 0.250