PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-21:42:50
G02     59.4           32.8               10.6 +/-    1.42      17.6 +/-    1.42  0.060 / 0.090
G05     56.8           60.2               11.0 +/-    0.75      12.5 +/-    0.75  0.050 / 0.100
G12     185.2          33.6               12.3 +/-    1.32      20.0 +/-    1.32  0.060 / 0.100
G13     126.4          15.3               12.9 +/-    3.40      31.9 +/-    3.40  0.060 / 0.100
G15     163.0          13.2               15.3 +/-    3.46      39.7 +/-    3.46  0.210 / 0.470
G21     271.9          17.1               14.6 +/-    2.10      34.6 +/-    2.10  0.130 / 0.310
G25     236.9          51.8               12.8 +/-    2.83      15.8 +/-    2.83  0.110 / 0.400
G29     330.1          56.0               13.0 +/-    0.93      15.4 +/-    0.93  0.140 / 0.460