PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-21:58:00
G08     317.1          14.6                5.4 +/-    2.68      13.5 +/-    2.68  0.050 / 0.080
G10     312.5          56.2                8.5 +/-    1.21      10.1 +/-    1.21  0.050 / 0.070
G14     213.1          19.9               12.7 +/-    3.45      28.1 +/-    3.45  0.030 / 0.050
G15     45.9           24.5                6.8 +/-    0.96      13.5 +/-    0.96  0.040 / 0.050
G20     14.7           64.0                8.1 +/-    0.72       8.9 +/-    0.72  0.210 / 0.440
G21     119.5          67.0                8.7 +/-    0.83       9.4 +/-    0.83  0.140 / 0.280
G24     84.0           28.6                8.9 +/-    0.98      16.0 +/-    0.98  0.090 / 0.270
G27     290.5          36.6                8.1 +/-    0.78      12.5 +/-    0.78  0.100 / 0.390
G32     215.0          42.4               11.6 +/-    2.28      16.2 +/-    2.28  0.060 / 0.130