PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-17:28:10
G10     297.1          51.4                8.3 +/-    2.57      10.4 +/-    2.57  0.080 / 0.090
G14     210.4          12.4                6.4 +/-   18.40      16.8 +/-   18.40  0.060 / 0.080
G15     45.9           26.7                7.4 +/-    1.83      13.8 +/-    1.83  0.070 / 0.190
G18     3.2            65.7                9.2 +/-    0.37      10.0 +/-    0.37  0.060 / 0.170
G20     70.8           19.8                9.4 +/-    3.04      20.8 +/-    3.04  0.090 / 0.110
G21     105.2          69.1               11.4 +/-    0.79      12.1 +/-    0.79  0.060 / 0.100
G24     98.6           26.7                9.8 +/-    1.20      18.5 +/-    1.20  0.110 / 0.440
G27     298.7          35.1                7.9 +/-    1.02      12.5 +/-    1.02  0.140 / 0.400
G32     211.2          31.2               10.1 +/-    1.88      17.2 +/-    1.88  0.030 / 0.030