PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-15:12:40
G02     59.6           33.3                4.7 +/-    0.99       7.7 +/-    0.99  0.080 / 0.090
G05     59.4           63.8                4.8 +/-    0.61       5.3 +/-    0.61  0.070 / 0.100
G12     183.5          30.3                7.8 +/-    1.61      13.5 +/-    1.61  0.130 / 0.120
G13     126.6          16.1                8.3 +/-    2.83      20.0 +/-    2.83  0.090 / 0.110
G15     165.6          11.8                6.8 +/-    4.34      18.2 +/-    4.34  0.110 / 0.160
G21     273.0          19.1                6.1 +/-    0.99      13.7 +/-    0.99  0.110 / 0.260
G25     228.4          50.0                5.8 +/-    3.90       7.3 +/-    3.90  0.030 / 0.030
G29     329.6          55.9                4.9 +/-    0.88       5.8 +/-    0.88  0.030 / 0.030