PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-17:13:00
G02     55.7           36.2                9.7 +/-    0.47      15.1 +/-    0.47  0.040 / 0.060
G05     64.7           65.3               10.8 +/-    0.68      11.8 +/-    0.68  0.060 / 0.060
G12     184.2          35.8               13.3 +/-    1.50      20.7 +/-    1.50  0.100 / 0.260
G13     129.0          12.9               12.6 +/-    2.96      33.0 +/-    2.96  0.140 / 0.270
G15     165.9          9.9                -9.4 +/-   15.37     -26.2 +/-   15.37  0.110 / 0.400
G21     269.0          14.6               11.6 +/-    1.80      29.2 +/-    1.80  0.150 / 0.450
G25     243.0          54.1               12.6 +/-    1.06      15.2 +/-    1.06  0.040 / 0.110
G29     326.4          51.2               10.6 +/-    1.19      13.2 +/-    1.19  0.040 / 0.090