PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-21:42:30
G10     283.4          46.7                9.7 +/-    1.14      12.7 +/-    1.14  0.070 / 0.110
G15     50.9           42.5                8.0 +/-    0.49      11.2 +/-    0.49  0.060 / 0.140
G20     327.5          64.7                7.8 +/-    0.47       8.5 +/-    0.47  0.090 / 0.220
G21     53.3           77.2                9.1 +/-    0.45       9.3 +/-    0.45  0.090 / 0.180
G24     105.4          21.9               11.7 +/-    0.79      24.6 +/-    0.79  0.040 / 0.050
G27     310.8          28.0                8.0 +/-    1.02      14.7 +/-    1.02  0.030 / 0.050
G29     168.7          17.6               11.0 +/-    2.45      25.7 +/-    2.45  0.030 / 0.070
G32     206.8          23.1               11.2 +/-    0.84      22.9 +/-    0.84  0.040 / 0.070