PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-17:43:10
G02     64.0           29.8               11.1 +/-    1.11      19.5 +/-    1.11  0.110 / 0.420
G05     51.0           56.4               12.3 +/-    0.96      14.4 +/-    0.96  0.200 / 0.350
G12     182.4          25.3               13.7 +/-    2.47      26.6 +/-    2.47  0.080 / 0.280
G13     120.8          19.6               14.5 +/-    2.14      32.3 +/-    2.14  0.080 / 0.270
G15     160.9          17.6               14.0 +/-    2.55      32.8 +/-    2.55  0.120 / 0.190
G21     277.2          20.8                9.1 +/-    1.21      19.7 +/-    1.21  0.110 / 0.170
G25     228.6          47.0               12.2 +/-    3.27      16.0 +/-    3.27  0.070 / 0.100
G29     333.3          60.9                9.8 +/-    0.73      11.1 +/-    0.73  0.060 / 0.100