PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/02-18:58:00
G05     51.1           13.9                8.3 +/-    1.83      21.1 +/-    1.83  0.130 / 0.550
G10     241.3          18.5               12.3 +/-    1.14      28.0 +/-    1.14  0.140 / 0.550
G13     65.8           34.7               11.2 +/-    1.06      17.9 +/-    1.06  0.050 / 0.090
G15     119.4          56.6               12.8 +/-    0.75      15.0 +/-    0.75  0.040 / 0.090
G16     306.8          14.7                7.3 +/-    2.64      18.3 +/-    2.64  0.080 / 0.170
G20     255.6          42.6               11.5 +/-    1.26      16.0 +/-    1.26  0.070 / 0.170
G21     321.2          52.3               11.8 +/-    1.73      14.5 +/-    1.73  0.100 / 0.280
G26     279.6          19.2                9.0 +/-    0.82      20.2 +/-    0.82  0.120 / 0.290
G29     160.2          63.9               11.7 +/-    0.74      12.9 +/-    0.74  0.060 / 0.130