PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-17:42:30
G10     236.0          12.6               11.2 +/-    3.52      29.6 +/-    3.52  0.050 / 0.070
G13     75.7           36.1                8.9 +/-    0.72      13.8 +/-    0.72  0.050 / 0.080
G15     130.9          51.6               11.3 +/-    0.84      14.0 +/-    0.84  0.160 / 0.390
G16     314.2          12.4                7.6 +/-    1.96      20.1 +/-    1.96  0.120 / 0.360
G20     247.9          36.7               10.2 +/-    1.45      15.7 +/-    1.45  0.080 / 0.120
G21     313.8          47.5                7.5 +/-    0.96       9.8 +/-    0.96  0.070 / 0.100
G26     288.2          20.2                8.1 +/-    1.37      17.7 +/-    1.37  0.030 / 0.050
G29     154.6          72.8                9.6 +/-    0.67      10.0 +/-    0.67  0.030 / 0.050