PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-19:12:40
G08     316.4          14.8                7.8 +/-    2.24      19.6 +/-    2.24  0.060 / 0.080
G10     321.6          58.5                8.7 +/-    0.76      10.1 +/-    0.76  0.060 / 0.080
G14     214.5          20.3               13.2 +/-    3.50      28.9 +/-    3.50  0.090 / 0.120
G15     45.9           15.1                7.0 +/-    1.62      17.4 +/-    1.62  0.080 / 0.110
G20     27.1           62.0                8.3 +/-    0.61       9.3 +/-    0.61  0.040 / 0.050
G21     125.2          64.4               10.1 +/-    0.89      11.0 +/-    0.89  0.040 / 0.040
G24     84.5           30.4                9.5 +/-    0.41      16.5 +/-    0.41  0.160 / 0.290
G27     284.8          38.0                9.4 +/-    1.58      14.2 +/-    1.58  0.090 / 0.250
G32     216.7          46.1               13.8 +/-    1.78      18.4 +/-    1.78  0.140 / 0.380