PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-22:27:30
G10     280.9          45.5               10.9 +/-    1.01      14.6 +/-    1.01  0.090 / 0.110
G15     51.5           43.0                9.6 +/-    0.71      13.3 +/-    0.71  0.070 / 0.110
G20     275.2          30.5               17.0 +/-    0.40      29.5 +/-    0.40  0.100 / 0.190
G21     38.4           77.2                9.9 +/-    0.35      10.1 +/-    0.35  0.110 / 0.180
G24     107.9          20.9                9.8 +/-    1.47      21.2 +/-    1.47  0.030 / 0.040
G27     311.9          27.2                8.4 +/-    1.14      15.6 +/-    1.14  0.030 / 0.040
G29     169.1          20.3               11.1 +/-    0.94      24.1 +/-    0.94  0.040 / 0.060
G32     206.1          21.8               12.8 +/-    1.94      27.1 +/-    1.94  0.030 / 0.050