PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-19:57:50
G10     248.4          26.5               13.5 +/-    1.24      25.5 +/-    1.24  0.040 / 0.060
G13     55.3           30.1                8.8 +/-    0.95      15.4 +/-    0.95  0.040 / 0.060
G15     93.7           58.4               11.5 +/-    0.40      13.3 +/-    0.40  0.070 / 0.170
G16     298.0          15.8                9.0 +/-    2.98      22.0 +/-    2.98  0.060 / 0.130
G20     267.4          49.9               12.6 +/-    0.97      16.0 +/-    0.97  0.040 / 0.040
G21     330.2          57.6               10.1 +/-    0.39      11.7 +/-    0.39  0.040 / 0.050
G26     270.6          16.4               12.6 +/-    3.66      30.1 +/-    3.66  0.160 / 0.760
G29     162.8          53.6               13.5 +/-    0.58      16.4 +/-    0.58  0.150 / 0.670