PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-16:43:00
G03     195.9          37.3               12.3 +/-    0.81      18.8 +/-    0.81  0.240 / 0.610
G07     272.5          26.2               12.7 +/-    2.08      24.1 +/-    2.08  0.300 / 0.640
G08     157.0          11.2                8.3 +/-   32.01      22.5 +/-   32.01  0.030 / 0.030
G09     317.9          43.8               10.7 +/-    0.75      14.7 +/-    0.75  0.030 / 0.030
G16     54.7           54.9               10.3 +/-    0.79      12.3 +/-    0.79  0.190 / 0.170
G22     179.8          19.9               12.1 +/-    2.76      26.7 +/-    2.76  0.070 / 0.150
G23     15.3           78.9               10.2 +/-    0.47      10.4 +/-    0.47  0.030 / 0.040
G26     43.8           26.0                9.7 +/-    2.88      18.5 +/-    2.88  0.030 / 0.040
G27     118.5          23.5               12.5 +/-    1.88      25.2 +/-    1.88  0.100 / 0.190