PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-20:12:30
G08     297.5          22.3                9.7 +/-    1.75      20.3 +/-    1.75  0.060 / 0.120
G10     5.8            62.6                9.8 +/-    0.61      10.8 +/-    0.61  0.050 / 0.110
G14     226.6          40.3               12.6 +/-    2.01      18.2 +/-    2.01  0.060 / 0.110
G20     63.7           52.2               10.3 +/-    0.91      12.7 +/-    0.91  0.050 / 0.100
G21     145.4          43.7               12.2 +/-    0.94      16.8 +/-    0.94  0.060 / 0.080
G24     60.0           27.6                9.0 +/-    0.66      16.7 +/-    0.66  0.060 / 0.080
G27     257.4          33.5               10.8 +/-    1.67      17.7 +/-    1.67  0.050 / 0.110
G32     240.5          66.7               12.6 +/-    0.90      13.6 +/-    0.90  0.050 / 0.110