PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-23:12:30
G02     295.2          81.6               11.4 +/-    0.44      11.5 +/-    0.44  0.030 / 0.040
G05     166.9          26.1               16.8 +/-    2.13      32.1 +/-    2.13  0.020 / 0.040
G06     40.3           47.4                9.8 +/-    0.55      12.8 +/-    0.55  0.070 / 0.120
G12     319.5          63.4               11.0 +/-    1.13      12.1 +/-    1.13  0.080 / 0.160
G17     78.2           18.6               10.6 +/-    0.69      24.0 +/-    0.69  0.040 / 0.120
G19     66.1           33.8               10.6 +/-    0.87      17.2 +/-    0.87  0.060 / 0.140
G24     235.0          28.4               15.3 +/-    1.12      27.6 +/-    1.12  0.040 / 0.040
G25     317.8          20.6                9.2 +/-    2.35      20.0 +/-    2.35  0.030 / 0.030