PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/01-23:27:50
G10     246.7          23.5               12.8 +/-    1.45      25.8 +/-    1.45  0.180 / 0.570
G13     58.0           32.2                8.8 +/-    1.00      14.8 +/-    1.00  0.160 / 0.630
G15     101.5          58.8               11.2 +/-    0.70      12.8 +/-    0.70  0.100 / 0.190
G16     298.8          16.1               10.4 +/-    2.97      25.1 +/-    2.97  0.080 / 0.170
G20     253.4          25.3               15.8 +/-    1.25      30.7 +/-    1.25  0.070 / 0.070
G21     327.0          56.2                9.4 +/-    1.28      11.0 +/-    1.28  0.070 / 0.070
G26     270.7          17.5               11.5 +/-    2.66      26.9 +/-    2.66  0.030 / 0.040
G29     163.9          56.5               11.0 +/-    1.09      12.9 +/-    1.09  0.040 / 0.040