PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-18:12:30
G02     204.5          35.9               13.2 +/-    2.42      20.6 +/-    2.42  0.040 / 0.030
G06     149.8          72.6               12.1 +/-    0.96      12.6 +/-    0.96  0.030 / 0.030
G12     309.8          19.9               10.6 +/-    1.50      23.4 +/-    1.50  0.090 / 0.080
G17     37.9           47.8               10.5 +/-    1.72      13.7 +/-    1.72  0.130 / 0.090
G19     359.9          65.0               10.6 +/-    0.76      11.6 +/-    0.76  0.090 / 0.170
G24     294.1          40.0               14.1 +/-    9.08      20.5 +/-    9.08  0.090 / 0.210
G28     104.8          29.6               11.3 +/-    0.90      20.0 +/-    0.90  0.030 / 0.030