PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/15-04:28:10
G02     59.5           32.1                3.5 +/-    1.78       5.9 +/-    1.78  0.110 / 0.040
G05     58.7           60.6                5.4 +/-    0.54       6.1 +/-    0.54  0.070 / 0.060
G12     185.6          34.4                6.4 +/-    1.36      10.3 +/-    1.36  0.040 / 0.010
G13     129.6          14.3                6.5 +/-    3.12      16.6 +/-    3.12  0.040 / 0.010
G15     163.9          11.5                0.8 +/-   13.75       2.0 +/-   13.75  0.080 / 0.030
G20     215.4          30.9                6.0 +/-    2.39      10.3 +/-    2.39  0.070 / 0.040
G21     270.3          16.7                6.1 +/-    2.35      14.6 +/-    2.35  0.120 / 0.170
G25     240.4          52.9                6.8 +/-    3.28       8.3 +/-    3.28  0.090 / 0.190
G29     327.3          53.1                4.9 +/-    1.06       5.9 +/-    1.06  0.140 / 0.340