PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-17:43:10
G10     272.6          40.7               14.2 +/-    1.17      20.4 +/-    1.17  0.120 / 0.120
G13     40.2           15.4               12.7 +/-    2.50      31.4 +/-    2.50  0.100 / 0.120
G15     53.7           43.5               15.0 +/-    0.75      20.6 +/-    0.75  0.040 / 0.030
G18     316.4          66.5               14.9 +/-    0.66      16.1 +/-    0.66  0.030 / 0.030
G20     57.4           32.5               12.9 +/-    1.12      21.4 +/-    1.12  0.120 / 0.210
G21     35.7           75.2               16.6 +/-    0.43      17.1 +/-    0.43  0.110 / 0.170
G24     117.0          17.0               17.4 +/-    1.14      41.1 +/-    1.14  0.050 / 0.110
G27     315.1          24.1               13.9 +/-    1.29      27.7 +/-    1.29  0.050 / 0.120
G29     166.1          20.8               15.6 +/-    1.06      33.7 +/-    1.06  0.140 / 0.490
G32     205.8          12.6               13.2 +/-   27.66      34.8 +/-   27.66  0.170 / 0.230