PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-19:42:30
G05     47.2           23.4               14.3 +/-    1.68      29.0 +/-    1.68  0.160 / 0.510
G13     82.6           37.4               18.9 +/-    0.67      28.7 +/-    0.67  0.210 / 0.450
G15     129.5          49.6               18.0 +/-    0.84      22.8 +/-    0.84  0.070 / 0.190
G18     242.2          39.5               16.8 +/-    1.34      24.6 +/-    1.34  0.090 / 0.160
G20     24.0           70.1               16.2 +/-    0.74      17.2 +/-    0.74  0.040 / 0.070
G21     310.6          46.1               15.8 +/-    0.84      21.0 +/-    0.84  0.050 / 0.080
G25     199.3          12.3               21.6 +/-    3.38      57.4 +/-    3.38  0.050 / 0.040
G26     295.4          19.0               11.9 +/-    1.61      26.9 +/-    1.61  0.040 / 0.030
G29     149.4          71.5               20.4 +/-    0.29      21.4 +/-    0.29  0.120 / 0.180