PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-19:13:00
G10     262.1          36.7               21.6 +/-    1.09      33.2 +/-    1.09  0.120 / 0.240
G13     44.0           20.8               15.6 +/-    1.59      33.6 +/-    1.59  0.160 / 0.340
G15     64.9           52.1               17.8 +/-    0.44      21.9 +/-    0.44  0.060 / 0.050
G20     290.7          58.8               19.0 +/-    0.61      21.8 +/-    0.61  0.050 / 0.050
G21     351.2          67.9               17.1 +/-    0.58      18.3 +/-    0.58  0.080 / 0.290
G24     126.2          11.1               17.2 +/-   39.61      46.8 +/-   39.61  0.080 / 0.340
G26     257.2          10.2               20.2 +/-    2.95      56.2 +/-    2.95  0.200 / 0.380
G27     320.8          14.6               14.6 +/-    3.68      36.6 +/-    3.68  0.150 / 0.340
G29     166.6          37.4               20.5 +/-    1.47      31.2 +/-    1.47  0.030 / 0.050