PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-18:28:10
G10     272.8          42.8               10.4 +/-    1.36      14.5 +/-    1.36  0.250 / 0.190
G13     39.5           13.5                5.8 +/-    3.58      15.0 +/-    3.58  0.190 / 0.140
G15     54.1           44.1                9.3 +/-    1.34      12.7 +/-    1.34  0.050 / 0.040
G16     274.0          11.1                8.5 +/-    5.17      23.1 +/-    5.17  0.050 / 0.040
G20     310.7          63.0               10.0 +/-    0.75      11.1 +/-    0.75  0.260 / 0.370
G21     14.6           74.0               10.9 +/-    0.47      11.3 +/-    0.47  0.190 / 0.360
G24     118.4          16.8                9.1 +/-    1.78      21.7 +/-    1.78  0.150 / 0.220
G27     316.6          22.3               10.0 +/-    1.23      20.8 +/-    1.23  0.130 / 0.250
G29     167.9          27.4                9.6 +/-    1.49      17.7 +/-    1.49  0.230 / 0.320
G32     204.4          14.0                9.3 +/-    3.95      23.7 +/-    3.95  0.270 / 0.350