PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-21:42:30
G02     14.2           68.7                9.6 +/-    0.52      10.3 +/-    0.52  0.030 / 0.020
G05     156.1          47.6               12.5 +/-    0.76      16.2 +/-    0.76  0.030 / 0.030
G06     46.7           26.9                8.2 +/-    1.76      15.4 +/-    1.76  0.060 / 0.040
G12     240.7          80.5                9.8 +/-    0.49       9.9 +/-    0.49  0.030 / 0.050
G19     86.1           21.2               10.7 +/-    1.69      23.0 +/-    1.69  0.170 / 0.390
G24     217.8          13.0               11.9 +/-    2.70      31.1 +/-    2.70  0.110 / 0.440
G25     312.5          41.2               10.9 +/-    0.74      15.6 +/-    0.74  0.090 / 0.180
G29     295.7          16.1               10.0 +/-    1.83      24.2 +/-    1.83  0.100 / 0.170