PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/23-21:42:40
G01     312.2          30.4                8.2 +/-    0.99      14.2 +/-    0.99  0.140 / 0.160
G10     98.1           43.2                8.2 +/-    0.97      11.4 +/-    0.97  0.110 / 0.170
G11     292.6          25.4                9.2 +/-    1.39      17.7 +/-    1.39  0.190 / 0.360
G14     325.2          70.0                0.5 +/-    0.41       0.5 +/-    0.41  0.180 / 0.370
G20     116.2          17.7                8.7 +/-    1.51      20.2 +/-    1.51  0.090 / 0.120
G22     306.9          18.3                7.9 +/-    1.99      18.1 +/-    1.99  0.100 / 0.120
G25     90.4           13.6                7.8 +/-    2.61      20.0 +/-    2.61  0.040 / 0.060
G31     170.1          57.0                9.4 +/-    0.80      11.0 +/-    0.80  0.040 / 0.050
G32     28.9           57.2                7.2 +/-    1.26       8.4 +/-    1.26  0.030 / 0.030