PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/06-21:58:00
G10     271.5          40.9               11.7 +/-    1.06      16.7 +/-    1.06  0.040 / 0.040
G13     40.1           14.9                8.8 +/-    1.65      22.0 +/-    1.65  0.050 / 0.040
G15     58.8           50.7               10.5 +/-    0.47      13.2 +/-    0.47  0.110 / 0.190
G16     274.5          10.8                8.8 +/-    3.04      24.2 +/-    3.04  0.100 / 0.170
G20     305.5          62.0                9.7 +/-    1.31      10.8 +/-    1.31  0.110 / 0.370
G21     13.3           74.1               11.1 +/-    0.93      11.5 +/-    0.93  0.120 / 0.440
G24     114.7          16.8               10.8 +/-    1.39      25.8 +/-    1.39  0.140 / 0.620
G27     317.1          21.2                6.8 +/-    4.06      14.5 +/-    4.06  0.100 / 0.520
G29     168.5          27.6               13.0 +/-    1.07      23.9 +/-    1.07  0.140 / 0.210
G32     204.6          13.9               13.6 +/-    1.04      34.8 +/-    1.04  0.100 / 0.270