PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-18:58:00
G10     279.2          44.1               16.0 +/-    1.13      21.8 +/-    1.13  0.060 / 0.110
G13     38.5           10.9               14.1 +/-    3.49      38.7 +/-    3.49  0.070 / 0.120
G15     50.2           38.9               16.5 +/-    0.81      24.4 +/-    0.81  0.040 / 0.060
G18     329.6          67.1               16.1 +/-    0.95      17.3 +/-    0.95  0.030 / 0.040
G20     61.7           27.9               15.1 +/-    0.51      27.7 +/-    0.51  0.070 / 0.160
G21     55.8           76.0               17.7 +/-    1.08      18.2 +/-    1.08  0.080 / 0.150
G24     112.0          20.2               22.4 +/-    1.38      48.9 +/-    1.38  0.070 / 0.170
G27     311.2          28.0               15.0 +/-    0.62      27.4 +/-    0.62  0.080 / 0.130
G29     166.0          14.6               23.1 +/-    3.46      58.0 +/-    3.46  0.150 / 0.660
G32     207.1          17.5               25.7 +/-    3.25      60.2 +/-    3.25  0.260 / 0.610