PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-21:13:10
G10     91.0           46.9               12.7 +/-    0.61      16.6 +/-    0.61  0.230 / 0.270
G11     298.6          23.8               11.0 +/-    2.05      22.1 +/-    2.05  0.110 / 0.220
G14     307.3          70.1               11.3 +/-    0.69      12.0 +/-    0.69  0.040 / 0.050
G20     112.1          21.8               11.4 +/-    1.66      24.0 +/-    1.66  0.040 / 0.050
G22     304.3          14.0               11.0 +/-    1.83      27.9 +/-    1.83  0.160 / 0.280
G25     95.7           11.2               11.5 +/-    1.89      31.2 +/-    1.89  0.200 / 0.270
G31     172.8          50.5               13.5 +/-    0.89      16.9 +/-    0.89  0.040 / 0.060
G32     21.7           61.5               10.1 +/-    0.88      11.4 +/-    0.88  0.040 / 0.050