PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-20:57:40
G10     273.6          43.1                8.7 +/-    0.76      12.0 +/-    0.76  0.040 / 0.050
G13     39.3           13.0                7.4 +/-    0.80      19.4 +/-    0.80  0.040 / 0.050
G15     54.7           45.5                8.7 +/-    0.96      11.6 +/-    0.96  0.100 / 0.170
G16     273.7          10.7                6.9 +/-    2.41      18.9 +/-    2.41  0.110 / 0.160
G20     310.3          62.7                8.6 +/-    0.89       9.6 +/-    0.89  0.130 / 0.260
G21     15.5           74.3               11.1 +/-    0.38      11.5 +/-    0.38  0.170 / 0.360
G24     117.4          17.2               11.1 +/-    1.35      26.2 +/-    1.35  0.030 / 0.060
G27     316.3          22.6                6.7 +/-    1.01      13.8 +/-    1.01  0.030 / 0.050
G29     167.8          26.2               11.8 +/-    1.22      22.4 +/-    1.22  0.150 / 0.640
G32     204.8          14.0               13.4 +/-    2.14      34.2 +/-    2.14  0.100 / 0.730