PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-15:12:30
G02     59.6           33.3                4.7 +/-    0.69       7.7 +/-    0.69  0.050 / 0.070
G05     59.4           63.8                6.1 +/-    1.02       6.7 +/-    1.02  0.050 / 0.070
G12     183.5          30.3                7.6 +/-    2.72      13.2 +/-    2.72  0.110 / 0.240
G13     126.6          16.1                8.3 +/-    1.79      20.0 +/-    1.79  0.090 / 0.240
G15     165.6          11.8                7.5 +/-    2.51      20.2 +/-    2.51  0.060 / 0.110
G21     273.0          19.1                4.5 +/-    1.38      10.1 +/-    1.38  0.080 / 0.110
G25     228.4          50.0                7.6 +/-    2.58       9.6 +/-    2.58  0.070 / 0.220
G29     329.6          55.9                4.1 +/-    0.82       4.8 +/-    0.82  0.070 / 0.240