PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-19:57:30
G01     311.6          31.1                8.5 +/-    1.30      14.6 +/-    1.30  0.090 / 0.180
G10     98.8           42.7                9.2 +/-    0.52      12.8 +/-    0.52  0.130 / 0.200
G11     292.7          25.1                9.5 +/-    1.64      18.5 +/-    1.64  0.050 / 0.060
G14     323.7          69.7                8.7 +/-    0.77       9.2 +/-    0.77  0.040 / 0.050
G20     116.8          16.6                9.3 +/-    1.33      22.3 +/-    1.33  0.150 / 0.240
G22     307.2          19.0                9.2 +/-    1.80      20.8 +/-    1.80  0.170 / 0.270
G25     89.4           13.8               10.9 +/-    1.31      28.0 +/-    1.31  0.040 / 0.060
G31     170.7          57.1               10.9 +/-    1.08      12.7 +/-    1.08  0.040 / 0.060
G32     30.1           56.4                7.5 +/-    0.73       8.8 +/-    0.73  0.030 / 0.050