PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-19:27:40
G10     243.5          22.1               15.9 +/-    1.27      33.3 +/-    1.27  0.040 / 0.060
G13     61.6           32.8               12.1 +/-    0.49      20.1 +/-    0.49  0.050 / 0.070
G15     105.7          57.5               13.5 +/-    0.19      15.7 +/-    0.19  0.060 / 0.140
G16     303.9          15.4                7.6 +/-    3.08      18.8 +/-    3.08  0.060 / 0.130
G20     260.0          45.8               12.1 +/-    1.45      16.1 +/-    1.45  0.160 / 0.670
G21     323.6          53.4               13.5 +/-    0.69      16.4 +/-    0.69  0.170 / 0.670
G26     276.5          18.3               12.1 +/-    1.72      27.8 +/-    1.72  0.030 / 0.050
G29     160.3          60.7               15.6 +/-    0.98      17.6 +/-    0.98  0.030 / 0.050