PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-20:12:40
G01     310.8          30.1                8.7 +/-    0.96      15.2 +/-    0.96  0.110 / 0.210
G10     100.8          43.9               10.0 +/-    1.13      13.7 +/-    1.13  0.110 / 0.230
G11     287.7          27.8                6.4 +/-    1.08      11.7 +/-    1.08  0.030 / 0.040
G14     346.2          68.8                8.1 +/-    0.52       8.6 +/-    0.52  0.030 / 0.040
G18     114.6          16.3                9.5 +/-    1.30      23.0 +/-    1.30  0.050 / 0.030
G22     307.7          21.6                9.6 +/-    1.02      20.3 +/-    1.02  0.030 / 0.030
G25     86.4           15.1               10.1 +/-    2.17      25.1 +/-    2.17  0.040 / 0.040
G31     173.0          58.4               12.0 +/-    0.48      13.8 +/-    0.48  0.030 / 0.030
G32     29.7           56.5                7.7 +/-    1.07       9.1 +/-    1.07  0.140 / 0.170