PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-23:12:40
G10     265.9          37.7               10.4 +/-    1.16      15.7 +/-    1.16  0.220 / 0.200
G13     42.3           18.9                7.8 +/-    3.09      17.6 +/-    3.09  0.130 / 0.120
G15     63.2           52.6                8.8 +/-    0.82      10.7 +/-    0.82  0.090 / 0.050
G16     278.2          12.7                9.7 +/-    1.73      25.6 +/-    1.73  0.090 / 0.060
G20     268.2          31.5                5.6 +/-    1.23       9.6 +/-    1.23  0.050 / 0.090
G21     357.3          70.7                9.0 +/-    0.71       9.5 +/-    0.71  0.050 / 0.080
G24     119.6          13.8                9.5 +/-    3.39      24.2 +/-    3.39  0.120 / 0.290
G27     319.2          17.8                7.1 +/-    5.34      16.5 +/-    5.34  0.140 / 0.250
G29     168.3          33.4               10.5 +/-    1.43      17.2 +/-    1.43  0.230 / 0.320