PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-21:27:50
G08     267.3          19.1                8.7 +/-    1.40      19.6 +/-    1.40  0.140 / 0.250
G10     58.1           58.8                9.8 +/-    0.36      11.2 +/-    0.36  0.160 / 0.230
G11     312.2          16.8                7.3 +/-    2.60      17.3 +/-    2.60  0.120 / 0.230
G14     262.4          65.1                8.8 +/-    1.03       9.6 +/-    1.03  0.160 / 0.270
G18     312.8          31.9               10.0 +/-    1.61      16.9 +/-    1.61  0.050 / 0.050
G20     93.4           37.9               10.4 +/-    0.90      15.6 +/-    0.90  0.040 / 0.060
G21     154.2          16.2               12.1 +/-    2.13      29.2 +/-    2.13  0.090 / 0.190
G27     234.8          17.6               11.9 +/-    3.40      27.7 +/-    3.40  0.110 / 0.210
G31     179.4          27.5               11.9 +/-    1.09      22.0 +/-    1.09  0.110 / 0.320
G32     333.2          75.0                9.7 +/-    0.35      10.0 +/-    0.35  0.090 / 0.260