PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-18:12:30
G02     7.5            71.8               13.7 +/-    0.68      14.3 +/-    0.68  0.110 / 0.160
G05     164.7          41.0               15.3 +/-    0.88      22.0 +/-    0.88  0.130 / 0.260
G06     45.3           30.8               10.4 +/-    0.35      17.9 +/-    0.35  0.030 / 0.040
G12     270.4          79.5               10.9 +/-    1.28      11.1 +/-    1.28  0.030 / 0.030
G19     86.2           19.0               11.3 +/-    1.34      25.5 +/-    1.34  0.050 / 0.090
G24     221.8          15.6               12.3 +/-    1.84      30.1 +/-    1.84  0.050 / 0.100
G25     312.6          42.8               13.7 +/-    2.69      19.1 +/-    2.69  0.040 / 0.040
G29     295.6          18.0               12.0 +/-    1.04      27.9 +/-    1.04  0.040 / 0.050