PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-20:58:00
G05     46.7           25.5               13.8 +/-    1.14      26.6 +/-    1.14  0.060 / 0.090
G13     84.5           37.4               16.0 +/-    0.55      24.4 +/-    0.55  0.040 / 0.080
G15     132.0          48.5               17.6 +/-    1.04      22.6 +/-    1.04  0.080 / 0.250
G18     240.9          38.1               14.6 +/-    0.80      22.0 +/-    0.80  0.110 / 0.260
G20     23.6           70.9               15.3 +/-    0.73      16.1 +/-    0.73  0.090 / 0.370
G21     308.9          44.7               14.5 +/-    1.65      19.6 +/-    1.65  0.090 / 0.430
G25     199.3          12.9               18.0 +/-    2.69      47.1 +/-    2.69  0.040 / 0.040
G26     295.8          19.3               14.0 +/-    1.38      31.4 +/-    1.38  0.040 / 0.050
G29     148.6          73.9               17.3 +/-    0.35      18.0 +/-    0.35  0.040 / 0.100