PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-14:57:50
G02     53.9           37.0                6.5 +/-    0.63       9.9 +/-    0.63  0.020 / 0.030
G05     75.6           68.9                7.5 +/-    0.67       7.9 +/-    0.67  0.030 / 0.030
G12     183.8          38.6                9.8 +/-    1.68      14.6 +/-    1.68  0.230 / 0.700
G13     131.7          10.5               -0.6 +/-   25.43      -1.6 +/-   25.43  0.280 / 0.490
G21     266.2          12.6                5.8 +/-    8.67      15.3 +/-    8.67  0.200 / 0.750
G25     249.0          55.9                8.5 +/-    0.88      10.0 +/-    0.88  0.240 / 0.450
G29     323.7          47.5                5.5 +/-    1.41       7.2 +/-    1.41  0.050 / 0.050