PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-19:13:00
G10     268.9          39.6               12.4 +/-    1.31      18.2 +/-    1.31  0.110 / 0.180
G13     41.1           16.7                9.9 +/-    1.86      23.7 +/-    1.86  0.110 / 0.190
G15     60.2           51.0               10.8 +/-    0.35      13.4 +/-    0.35  0.040 / 0.050
G16     277.4          11.6               11.5 +/-    1.81      30.9 +/-    1.81  0.040 / 0.050
G20     300.9          61.0               11.3 +/-    0.73      12.8 +/-    0.73  0.180 / 0.710
G21     9.9            73.1               12.9 +/-    0.98      13.4 +/-    0.98  0.170 / 0.660
G24     115.9          15.5               13.3 +/-    2.13      32.7 +/-    2.13  0.140 / 0.230
G27     318.6          18.9               10.6 +/-    2.51      23.9 +/-    2.51  0.120 / 0.210
G29     167.9          29.5               12.9 +/-    1.06      22.8 +/-    1.06  0.160 / 0.270
G32     204.4          11.1                1.3 +/-   42.65       3.5 +/-   42.65  0.170 / 0.330