PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-19:27:50
G10     273.4          41.1               14.6 +/-    1.63      20.9 +/-    1.63  0.110 / 0.140
G13     40.0           14.9               11.3 +/-    2.29      28.1 +/-    2.29  0.080 / 0.150
G15     53.3           43.3               13.2 +/-    0.91      18.2 +/-    0.91  0.040 / 0.040
G18     316.9          66.4               12.2 +/-    0.81      13.2 +/-    0.81  0.030 / 0.040
G20     58.3           31.1               12.7 +/-    0.85      21.7 +/-    0.85  0.060 / 0.120
G21     33.2           75.5               13.9 +/-    0.60      14.4 +/-    0.60  0.080 / 0.150
G24     116.4          17.4               13.8 +/-    1.43      32.3 +/-    1.43  0.110 / 0.270
G27     314.5          24.7               11.8 +/-    1.71      23.2 +/-    1.71  0.110 / 0.280
G29     165.9          19.4               13.0 +/-    0.87      29.0 +/-    0.87  0.100 / 0.260
G32     206.1          12.6               14.1 +/-    1.78      37.2 +/-    1.78  0.100 / 0.310