PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-22:27:50
G02     67.7           26.8                8.6 +/-    0.89      16.1 +/-    0.89  0.030 / 0.040
G05     48.1           51.0                8.8 +/-    0.49      11.0 +/-    0.49  0.030 / 0.050
G12     180.6          19.2               14.7 +/-    1.40      32.9 +/-    1.40  0.100 / 0.240
G13     118.9          22.5               13.7 +/-    1.51      28.4 +/-    1.51  0.080 / 0.290
G15     159.8          20.0               14.0 +/-    1.58      30.7 +/-    1.58  0.080 / 0.240
G21     279.8          23.1               12.7 +/-    1.53      25.9 +/-    1.53  0.080 / 0.220
G25     223.0          43.2               12.2 +/-    1.62      16.8 +/-    1.62  0.060 / 0.110
G26     319.5          10.5              -18.1 +/-   27.26     -50.0 +/-   27.26  0.050 / 0.090
G29     334.4          64.1               11.2 +/-    0.68      12.3 +/-    0.68  0.060 / 0.120