PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-00:27:50
G10     264.6          36.8               12.6 +/-    1.40      19.3 +/-    1.40  0.180 / 0.210
G13     43.0           19.9                7.9 +/-    2.50      17.5 +/-    2.50  0.170 / 0.280
G15     64.1           52.8               10.4 +/-    0.48      12.6 +/-    0.48  0.080 / 0.050
G16     279.6          13.0               10.4 +/-    2.73      27.2 +/-    2.73  0.080 / 0.040
G20     272.7          40.6               12.0 +/-    0.97      17.4 +/-    0.97  0.250 / 0.460
G21     355.1          69.9                9.4 +/-    0.74       9.9 +/-    0.74  0.130 / 0.350
G24     120.9          13.0               11.6 +/-    2.56      30.3 +/-    2.56  0.200 / 0.340
G27     319.7          17.0               10.2 +/-    1.57      24.2 +/-    1.57  0.180 / 0.270
G29     168.1          34.6               11.6 +/-    1.39      18.5 +/-    1.39  0.170 / 0.280