PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/02-19:27:50
G10     252.0          28.1               12.8 +/-    1.77      23.3 +/-    1.77  0.210 / 0.660
G13     52.0           28.7                9.2 +/-    0.90      16.5 +/-    0.90  0.210 / 0.730
G15     90.8           59.7               12.3 +/-    0.74      14.0 +/-    0.74  0.040 / 0.050
G16     293.7          15.5                8.7 +/-    4.53      21.3 +/-    4.53  0.040 / 0.050
G20     272.0          51.8               11.1 +/-    1.04      13.6 +/-    1.04  0.110 / 0.110
G21     336.6          61.6               10.8 +/-    0.52      12.1 +/-    0.52  0.070 / 0.090
G26     266.5          14.9               10.2 +/-    1.41      25.4 +/-    1.41  0.050 / 0.150
G29     165.0          48.5               12.0 +/-    1.14      15.5 +/-    1.14  0.060 / 0.160