PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-22:43:10
G08     309.8          19.2                8.1 +/-    1.91      18.2 +/-    1.91  0.060 / 0.070
G10     329.9          59.7                5.2 +/-    0.38       6.0 +/-    0.38  0.060 / 0.080
G14     217.4          28.8               11.6 +/-    1.81      20.9 +/-    1.81  0.040 / 0.050
G15     46.6           16.5                5.7 +/-    1.30      13.8 +/-    1.30  0.040 / 0.050
G20     34.9           61.0                8.1 +/-    0.59       9.1 +/-    0.59  0.110 / 0.190
G21     132.9          58.4               10.4 +/-    0.73      11.9 +/-    0.73  0.100 / 0.220
G24     72.9           29.0                8.0 +/-    0.60      14.2 +/-    0.60  0.150 / 0.250
G27     277.9          37.3               10.3 +/-    1.34      15.7 +/-    1.34  0.160 / 0.340
G32     221.9          52.1                9.6 +/-    0.42      11.8 +/-    0.42  0.070 / 0.100