PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-20:12:50
G10     267.3          37.7               16.3 +/-    1.32      24.7 +/-    1.32  0.040 / 0.040
G13     42.3           19.3               12.5 +/-    1.61      28.0 +/-    1.61  0.050 / 0.050
G15     58.4           48.0               15.1 +/-    0.51      19.6 +/-    0.51  0.150 / 0.260
G16     283.3          10.9               15.1 +/-    3.15      41.2 +/-    3.15  0.100 / 0.230
G18     303.2          64.9               13.9 +/-    0.67      15.2 +/-    0.67  0.160 / 0.300
G20     54.7           34.8               13.0 +/-    1.06      20.7 +/-    1.06  0.150 / 0.300
G21     11.8           73.1               16.7 +/-    0.63      17.3 +/-    0.63  0.040 / 0.110
G24     121.1          14.2               18.0 +/-    1.75      45.5 +/-    1.75  0.050 / 0.110
G27     317.6          20.6               13.6 +/-    3.57      29.4 +/-    3.57  0.100 / 0.290
G29     165.8          25.6               15.6 +/-    0.83      30.1 +/-    0.83  0.120 / 0.250