PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-21:28:00
G10     261.1          34.7               13.4 +/-    1.51      21.4 +/-    1.51  0.120 / 0.290
G13     44.9           22.3               10.2 +/-    1.90      21.1 +/-    1.90  0.110 / 0.230
G15     72.8           57.3               11.5 +/-    0.73      13.4 +/-    0.73  0.180 / 0.560
G16     283.7          13.9               11.3 +/-    1.48      28.8 +/-    1.48  0.130 / 0.410
G20     287.0          57.5               11.1 +/-    1.72      12.9 +/-    1.72  0.240 / 0.330
G21     350.4          68.0               12.1 +/-    0.92      12.9 +/-    0.92  0.260 / 0.350
G24     122.9          11.1               14.9 +/-    2.69      40.5 +/-    2.69  0.070 / 0.040
G27     321.2          13.5                8.4 +/-    1.93      21.6 +/-    1.93  0.050 / 0.040
G29     167.3          38.0               13.9 +/-    1.02      20.8 +/-    1.02  0.350 / 0.190