PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-06:27:50
G03     236.0          66.1                5.0 +/-    0.66       5.4 +/-    0.66  0.150 / 0.230
G07     250.7          11.3               -1.9 +/-   19.36      -5.1 +/-   19.36  0.210 / 0.340
G09     306.5          23.6                4.8 +/-    1.60       9.7 +/-    1.60  0.040 / 0.050
G14     103.3          10.5                3.7 +/-    2.65      10.3 +/-    2.65  0.040 / 0.050
G16     125.3          61.5                4.0 +/-    0.73       4.5 +/-    0.73  0.270 / 0.220
G22     192.9          52.2                3.1 +/-    0.61       3.8 +/-    0.61  0.370 / 0.120
G23     320.7          50.4                4.9 +/-    0.95       6.1 +/-    0.95  0.090 / 0.090
G26     67.0           52.2                4.2 +/-    0.70       5.2 +/-    0.70  0.070 / 0.110
G31     53.4           18.6                2.5 +/-    3.14       5.7 +/-    3.14  0.080 / 0.230