PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-15:13:10
G02     70.1           23.9                7.6 +/-    1.08      15.2 +/-    1.08  0.030 / 0.040
G05     47.4           52.6                6.9 +/-    0.68       8.4 +/-    0.68  0.030 / 0.040
G12     180.1          18.1                8.0 +/-    2.01      18.5 +/-    2.01  0.060 / 0.130
G13     115.3          23.4                9.2 +/-    1.35      18.6 +/-    1.35  0.060 / 0.100
G15     155.3          24.0                9.9 +/-    1.34      19.9 +/-    1.34  0.040 / 0.080
G20     225.3          10.7               -5.8 +/-   18.39     -15.9 +/-   18.39  0.050 / 0.080
G21     282.5          24.8                8.9 +/-    1.05      17.5 +/-    1.05  0.080 / 0.190
G25     221.9          41.8                8.2 +/-    2.00      11.7 +/-    2.00  0.090 / 0.210
G26     318.7          10.5              -18.3 +/-   25.01     -50.4 +/-   25.01  0.020 / 0.040
G29     337.3          66.6                6.1 +/-    0.87       6.6 +/-    0.87  0.030 / 0.040