PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-18:57:50
G02     204.4          36.3               10.8 +/-    1.64      16.8 +/-    1.64  0.060 / 0.090
G06     150.4          72.5               11.1 +/-    0.70      11.6 +/-    0.70  0.060 / 0.090
G12     309.7          19.4               10.0 +/-    1.13      22.4 +/-    1.13  0.040 / 0.050
G17     37.4           48.2                9.3 +/-    0.35      12.0 +/-    0.35  0.050 / 0.040
G19     0.6            64.9                9.9 +/-    0.88      10.8 +/-    0.88  0.110 / 0.160
G24     294.2          39.8               11.3 +/-    1.30      16.5 +/-    1.30  0.130 / 0.270
G28     104.9          29.6               11.0 +/-    0.96      19.4 +/-    0.96  0.060 / 0.170