PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-20:12:40
G10     271.5          42.0               10.9 +/-    1.06      15.4 +/-    1.06  0.100 / 0.200
G13     40.0           14.4                9.2 +/-    1.56      23.1 +/-    1.56  0.120 / 0.170
G15     55.8           46.3               10.3 +/-    1.20      13.6 +/-    1.20  0.040 / 0.040
G16     275.3          11.4               10.8 +/-    6.09      29.2 +/-    6.09  0.040 / 0.040
G20     307.0          62.3               10.6 +/-    1.15      11.9 +/-    1.15  0.150 / 0.420
G21     10.3           73.4               12.7 +/-    0.87      13.2 +/-    0.87  0.100 / 0.400
G24     119.1          16.2               14.5 +/-    2.47      35.0 +/-    2.47  0.190 / 0.820
G27     317.3          21.3                7.5 +/-    3.06      16.0 +/-    3.06  0.150 / 0.750
G29     167.7          28.2               14.7 +/-    0.94      26.8 +/-    0.94  0.030 / 0.050
G32     204.4          12.5               19.3 +/-    5.39      51.0 +/-    5.39  0.030 / 0.050