PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/20-17:58:00
G10     271.6          42.2               10.0 +/-    1.23      14.0 +/-    1.23  0.160 / 0.200
G13     39.9           14.3                6.3 +/-    3.75      15.9 +/-    3.75  0.320 / 0.270
G15     54.7           44.6                7.7 +/-    1.61      10.4 +/-    1.61  0.230 / 0.560
G16     274.9          11.5                5.4 +/-   18.20      14.6 +/-   18.20  0.250 / 0.340
G20     308.8          62.8                8.5 +/-    0.99       9.5 +/-    0.99  0.040 / 0.030
G21     11.9           73.5                9.0 +/-    0.62       9.4 +/-    0.62  0.040 / 0.040
G24     119.3          16.2                9.1 +/-    3.01      22.0 +/-    3.01  0.130 / 0.330
G27     317.2          21.5                7.7 +/-    3.74      16.3 +/-    3.74  0.120 / 0.450
G29     167.8          28.5                9.0 +/-    0.97      16.3 +/-    0.97  0.110 / 0.230
G32     204.2          13.2               12.3 +/-    3.93      32.1 +/-    3.93  0.130 / 0.280