PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-21:12:30
G08     296.7          22.8               10.8 +/-    1.34      22.2 +/-    1.34  0.070 / 0.100
G10     356.3          62.6               10.7 +/-    0.78      11.9 +/-    0.78  0.070 / 0.110
G14     226.7          43.7               15.4 +/-    1.22      21.1 +/-    1.22  0.060 / 0.100
G18     58.8           52.8               10.8 +/-    0.62      13.2 +/-    0.62  0.050 / 0.100
G21     143.3          41.3               12.8 +/-    1.24      18.3 +/-    1.24  0.050 / 0.080
G24     61.4           28.2                9.2 +/-    0.75      16.7 +/-    0.75  0.060 / 0.080
G27     257.3          33.5               12.3 +/-    1.47      20.1 +/-    1.47  0.030 / 0.030
G32     237.6          61.6               14.8 +/-    0.65      16.6 +/-    0.65  0.030 / 0.040