PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-17:13:10
G10     287.7          47.8                7.5 +/-    3.27       9.7 +/-    3.27  0.060 / 0.080
G15     47.3           32.7                7.9 +/-    1.17      13.1 +/-    1.17  0.060 / 0.080
G18     347.5          66.9                8.6 +/-    0.42       9.3 +/-    0.42  0.060 / 0.150
G20     65.9           24.3                9.2 +/-    2.42      18.2 +/-    2.42  0.060 / 0.110
G21     86.5           73.2                9.8 +/-    1.00      10.2 +/-    1.00  0.100 / 0.130
G24     105.6          23.7                9.6 +/-    0.66      19.4 +/-    0.66  0.080 / 0.130
G27     305.7          31.9                6.8 +/-    1.22      11.4 +/-    1.22  0.030 / 0.030
G32     208.7          24.6               10.8 +/-    1.63      21.4 +/-    1.63  0.040 / 0.030