PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-18:57:50
G08     280.2          21.9               10.4 +/-    1.03      21.8 +/-    1.03  0.190 / 0.120
G10     33.9           62.5                7.8 +/-    0.93       8.7 +/-    0.93  0.110 / 0.160
G14     244.3          57.4               10.9 +/-    1.75      12.6 +/-    1.75  0.130 / 0.250
G18     79.8           42.8               10.3 +/-    1.44      14.3 +/-    1.44  0.070 / 0.200
G21     150.1          22.6               11.8 +/-    1.45      24.5 +/-    1.45  0.120 / 0.250
G24     47.0           19.8                8.0 +/-    3.49      17.8 +/-    3.49  0.140 / 0.300
G27     240.8          24.0               13.0 +/-    1.17      26.1 +/-    1.17  0.020 / 0.020
G31     182.2          16.2               12.0 +/-    1.96      29.0 +/-    1.96  0.020 / 0.020
G32     281.3          74.6                9.4 +/-    0.61       9.7 +/-    0.61  0.100 / 0.180