PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/28-22:43:00
G01     305.1          34.9                8.4 +/-    1.27      13.3 +/-    1.27  0.070 / 0.140
G10     108.6          37.7                9.5 +/-    1.13      14.4 +/-    1.13  0.060 / 0.130
G11     277.6          28.3                9.2 +/-    1.49      16.8 +/-    1.49  0.070 / 0.100
G14     2.3            65.8                9.1 +/-    0.96       9.9 +/-    0.96  0.080 / 0.120
G18     270.2          50.9               10.1 +/-    1.56      12.6 +/-    1.56  0.050 / 0.050
G20     122.0          12.2               10.2 +/-    3.50      27.0 +/-    3.50  0.050 / 0.050
G22     310.5          26.9                6.8 +/-    1.11      12.8 +/-    1.11  0.060 / 0.170
G25     75.9           16.3                6.7 +/-    2.34      16.3 +/-    2.34  0.080 / 0.180
G31     166.2          66.9               11.1 +/-    1.06      12.0 +/-    1.06  0.110 / 0.300
G32     39.1           50.4                8.3 +/-    0.78      10.4 +/-    0.78  0.110 / 0.350