PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-19:42:50
G10     273.0          42.8                9.8 +/-    1.20      13.7 +/-    1.20  0.040 / 0.040
G13     39.5           13.4                5.8 +/-    3.81      14.9 +/-    3.81  0.040 / 0.040
G15     54.5           44.9                9.0 +/-    1.05      12.1 +/-    1.05  0.270 / 0.370
G16     274.0          11.0                7.8 +/-    6.15      21.4 +/-    6.15  0.150 / 0.350
G20     310.0          62.8                9.3 +/-    0.52      10.3 +/-    0.52  0.040 / 0.050
G21     14.2           74.1               10.0 +/-    0.40      10.4 +/-    0.40  0.040 / 0.040
G24     118.1          16.9               11.3 +/-    1.87      26.8 +/-    1.87  0.280 / 0.300
G27     316.6          22.3                8.8 +/-    2.11      18.3 +/-    2.11  0.200 / 0.340
G29     167.8          27.0               10.8 +/-    2.39      20.2 +/-    2.39  0.180 / 0.120
G32     204.5          13.8               13.6 +/-    2.57      34.9 +/-    2.57  0.170 / 0.120