PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-23:12:50
G08     272.3          18.9               10.4 +/-    1.43      23.5 +/-    1.43  0.170 / 0.340
G10     59.5           57.7                8.9 +/-    0.77      10.4 +/-    0.77  0.150 / 0.310
G14     258.4          62.8                8.2 +/-    0.85       9.2 +/-    0.85  0.120 / 0.460
G18     313.6          30.6               11.1 +/-    1.42      19.3 +/-    1.42  0.110 / 0.390
G20     94.1           37.0                8.6 +/-    0.82      13.2 +/-    0.82  0.040 / 0.060
G21     155.0          18.3               12.3 +/-    2.00      28.1 +/-    2.00  0.050 / 0.060
G24     41.3           12.3                6.3 +/-    2.05      16.7 +/-    2.05  0.110 / 0.190
G27     233.5          17.8               14.2 +/-    2.41      32.9 +/-    2.41  0.120 / 0.210
G31     177.6          29.1               13.7 +/-    1.52      24.4 +/-    1.52  0.070 / 0.140
G32     332.7          75.3                9.0 +/-    0.74       9.3 +/-    0.74  0.120 / 0.150