PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-20:57:40
G01     298.7          37.6                7.4 +/-    2.61      11.1 +/-    2.61  0.070 / 0.110
G03     309.4          11.6               -2.1 +/-   30.83      -5.8 +/-   30.83  0.070 / 0.100
G10     114.1          34.4                8.9 +/-    1.53      14.3 +/-    1.53  0.030 / 0.030
G11     272.9          27.7                8.8 +/-    1.51      16.1 +/-    1.51  0.020 / 0.020
G14     14.1           62.4                8.3 +/-    1.09       9.2 +/-    1.09  0.060 / 0.130
G22     312.1          32.0                8.3 +/-    1.90      13.9 +/-    1.90  0.080 / 0.140
G25     73.2           18.3                8.0 +/-    1.07      18.3 +/-    1.07  0.040 / 0.050
G31     160.8          72.7               11.2 +/-    0.31      11.6 +/-    0.31  0.040 / 0.040
G32     43.8           47.4                7.4 +/-    0.70       9.6 +/-    0.70  0.130 / 0.060