PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/10-17:27:50
G02     59.7           33.1                8.3 +/-    0.63      13.7 +/-    0.63  0.050 / 0.060
G05     56.7           61.3                9.4 +/-    0.83      10.5 +/-    0.83  0.050 / 0.070
G12     183.4          30.7                9.9 +/-    1.30      17.0 +/-    1.30  0.060 / 0.140
G13     125.2          16.1               10.5 +/-    2.20      25.3 +/-    2.20  0.050 / 0.120
G15     163.8          13.4               10.8 +/-    2.00      28.0 +/-    2.00  0.160 / 0.400
G21     272.8          17.5                8.7 +/-    1.87      20.4 +/-    1.87  0.120 / 0.300
G25     235.5          51.0                9.7 +/-    0.66      12.1 +/-    0.66  0.110 / 0.260
G29     329.6          55.8                8.3 +/-    1.04       9.9 +/-    1.04  0.080 / 0.220