PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-21:12:50
G10     262.9          34.9               19.5 +/-    1.78      31.0 +/-    1.78  0.070 / 0.120
G13     44.6           22.7               16.0 +/-    2.67      32.9 +/-    2.67  0.070 / 0.110
G15     63.8           51.4               18.4 +/-    1.49      22.8 +/-    1.49  0.260 / 0.240
G16     286.6          12.2               16.9 +/-    1.37      44.8 +/-    1.37  0.260 / 0.240
G18     293.2          63.1               18.2 +/-    0.92      20.2 +/-    0.92  0.040 / 0.030
G20     52.0           37.6               19.6 +/-    1.51      29.7 +/-    1.51  0.040 / 0.030
G21     358.6          70.4               19.2 +/-    0.86      20.3 +/-    0.86  0.050 / 0.070
G24     124.6          11.6               19.1 +/-   19.03      51.5 +/-   19.03  0.060 / 0.090
G27     319.4          17.3               17.8 +/-    1.35      41.8 +/-    1.35  0.160 / 0.190
G29     165.6          30.8               19.1 +/-    1.21      32.9 +/-    1.21  0.220 / 0.130