PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-21:12:50
G05     53.2           10.8               12.1 +/-    1.57      33.2 +/-    1.57  0.070 / 0.070
G10     245.1          20.9               18.3 +/-    1.70      39.3 +/-    1.70  0.050 / 0.070
G13     61.9           34.7               13.4 +/-    1.15      21.4 +/-    1.15  0.120 / 0.210
G15     101.4          57.5               15.7 +/-    0.35      18.3 +/-    0.35  0.130 / 0.210
G16     305.6          13.6               10.7 +/-    1.61      27.6 +/-    1.61  0.110 / 0.430
G18     259.6          51.6               15.8 +/-    1.10      19.6 +/-    1.10  0.120 / 0.380
G20     38.2           54.2               13.8 +/-    0.48      16.6 +/-    0.48  0.040 / 0.060
G21     327.0          56.5               14.7 +/-    0.71      17.2 +/-    0.71  0.040 / 0.070
G26     278.1          17.4               13.0 +/-    1.26      30.5 +/-    1.26  0.100 / 0.340
G29     160.7          53.4               17.3 +/-    0.80      21.0 +/-    0.80  0.110 / 0.380