PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-20:12:50
G10     275.9          44.2               10.1 +/-    1.17      13.8 +/-    1.17  0.110 / 0.180
G13     38.7           11.5                8.8 +/-    3.90      23.7 +/-    3.90  0.110 / 0.150
G15     52.8           43.1                8.9 +/-    0.58      12.4 +/-    0.58  0.040 / 0.040
G20     315.1          63.5                9.7 +/-    0.94      10.7 +/-    0.94  0.040 / 0.050
G21     22.0           75.3               10.1 +/-    0.51      10.4 +/-    0.51  0.230 / 0.470
G24     115.9          18.3               11.5 +/-    1.14      26.5 +/-    1.14  0.170 / 0.550
G27     315.2          24.1                8.0 +/-    2.54      16.0 +/-    2.54  0.040 / 0.070
G29     168.0          24.4               12.0 +/-    1.78      23.7 +/-    1.78  0.030 / 0.070
G32     205.0          16.0               16.9 +/-    2.71      41.0 +/-    2.71  0.140 / 0.340