PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-01:28:10
G02     50.4           39.8                8.7 +/-    1.33      12.7 +/-    1.33  0.050 / 0.050
G05     80.7           67.7                9.7 +/-    0.49      10.4 +/-    0.49  0.040 / 0.050
G12     189.3          47.8               11.3 +/-    1.98      14.6 +/-    1.98  0.060 / 0.070
G21     262.7          10.8               -0.3 +/-   23.97      -0.8 +/-   23.97  0.060 / 0.070
G25     257.1          57.9               10.1 +/-    0.74      11.7 +/-    0.74  0.120 / 0.440
G29     323.3          47.1                9.8 +/-    0.86      12.9 +/-    0.86  0.120 / 0.420