PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/21-21:28:10
G01     317.6          22.5                7.0 +/-    2.10      14.5 +/-    2.10  0.120 / 0.450
G08     256.0          12.1               10.0 +/-    3.95      26.6 +/-    3.95  0.130 / 0.450
G10     85.2           49.6                7.3 +/-    0.99       9.3 +/-    0.99  0.040 / 0.050
G11     302.5          22.3                6.9 +/-    1.05      14.4 +/-    1.05  0.030 / 0.050
G14     294.9          69.5                2.3 +/-    0.97       2.4 +/-    0.97  0.090 / 0.170
G20     108.7          25.0               10.8 +/-    1.75      21.1 +/-    1.75  0.110 / 0.190
G22     302.2          10.9                0.4 +/-   15.06       1.0 +/-   15.06  0.250 / 0.390
G31     174.1          45.7               10.7 +/-    1.12      14.3 +/-    1.12  0.250 / 0.540
G32     15.1           64.8                7.5 +/-    0.59       8.2 +/-    0.59  0.030 / 0.050