PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-19:43:00
G10     267.5          38.8               24.1 +/-    1.35      35.9 +/-    1.35  0.090 / 0.150
G13     41.6           17.7               17.8 +/-    1.09      41.5 +/-    1.09  0.090 / 0.140
G15     62.0           52.3               21.0 +/-    0.46      25.7 +/-    0.46  0.040 / 0.040
G16     278.3          12.1               20.6 +/-    1.89      54.8 +/-    1.89  0.040 / 0.040
G20     298.4          60.5               20.9 +/-    0.66      23.6 +/-    0.66  0.130 / 0.270
G21     5.7            72.3               22.7 +/-    0.80      23.8 +/-    0.80  0.140 / 0.230
G24     117.2          14.8               27.3 +/-    1.78      68.4 +/-    1.78  0.160 / 0.520
G27     319.1          18.0               18.4 +/-    0.83      42.5 +/-    0.83  0.150 / 0.410
G29     167.9          31.0               25.7 +/-    1.07      44.1 +/-    1.07  0.100 / 0.250
G32     204.2          10.1              -11.4 +/-   46.67     -31.8 +/-   46.67  0.090 / 0.260