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                7.1 +/-    1.69      11.7 +/-    1.69  0.090 / 0.120
G05     56.7           61.3                9.4 +/-    0.91      10.6 +/-    0.91  0.070 / 0.110
G12     183.4          30.7                9.1 +/-    1.50      15.7 +/-    1.50  0.120 / 0.240
G13     125.2          16.1               10.1 +/-    1.91      24.4 +/-    1.91  0.180 / 0.250
G15     163.8          13.4               11.1 +/-    1.38      28.8 +/-    1.38  0.140 / 0.430
G21     272.8          17.5               10.4 +/-    1.58      24.3 +/-    1.58  0.150 / 0.390
G25     235.5          51.0               10.4 +/-    3.28      12.9 +/-    3.28  0.110 / 0.140
G29     329.6          55.8                8.3 +/-    0.45       9.8 +/-    0.45  0.090 / 0.180