PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-21:12:30
G10     294.9          51.8               13.0 +/-    1.09      16.1 +/-    1.09  0.060 / 0.130
G15     46.7           31.1               10.7 +/-    0.44      18.4 +/-    0.44  0.050 / 0.110
G20     348.1          65.3               12.2 +/-    0.64      13.3 +/-    0.64  0.040 / 0.050
G21     83.3           76.1               14.7 +/-    0.86      15.1 +/-    0.86  0.040 / 0.050
G24     102.3          25.5               15.9 +/-    1.07      30.6 +/-    1.07  0.050 / 0.120
G27     303.9          32.9               12.7 +/-    2.58      20.9 +/-    2.58  0.070 / 0.080
G29     167.9          10.6               21.4 +/-    2.83      58.9 +/-    2.83  0.060 / 0.140
G32     208.9          29.4               19.0 +/-    1.78      33.7 +/-    1.78  0.070 / 0.110