PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-20:27:40
G13     38.3           10.5                6.1 +/-    5.06      16.9 +/-    5.06  0.050 / 0.040
G15     52.0           42.3                9.5 +/-    0.82      13.3 +/-    0.82  0.040 / 0.040
G20     317.6          63.8               11.2 +/-    0.85      12.3 +/-    0.85  0.120 / 0.400
G21     26.4           75.8               11.0 +/-    0.68      11.3 +/-    0.68  0.100 / 0.590
G24     114.8          19.0               14.1 +/-    1.44      31.9 +/-    1.44  0.050 / 0.060
G27     314.4          24.9                8.4 +/-    1.56      16.4 +/-    1.56  0.040 / 0.050
G29     168.0          23.2               17.1 +/-    2.05      34.8 +/-    2.05  0.180 / 0.240
G32     205.3          17.1               19.7 +/-    2.53      46.6 +/-    2.53  0.270 / 0.240