PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-03:57:50
G03     233.3          65.7                5.7 +/-    0.91       6.2 +/-    0.91  0.050 / 0.060
G07     250.9          11.0                1.4 +/-   17.48       3.9 +/-   17.48  0.050 / 0.070
G09     306.3          22.5                2.9 +/-    1.12       6.0 +/-    1.12  0.030 / 0.050
G14     103.7          10.5                3.3 +/-    2.62       9.2 +/-    2.62  0.030 / 0.050
G16     128.3          61.6                8.8 +/-    0.55       9.8 +/-    0.55  0.070 / 0.430
G22     193.4          52.0                7.0 +/-    1.45       8.6 +/-    1.45  0.090 / 0.420
G23     321.2          51.0                5.4 +/-    1.57       6.7 +/-    1.57  0.080 / 0.180
G26     68.2           53.4                5.1 +/-    0.48       6.1 +/-    0.48  0.080 / 0.180
G31     53.1           20.0                1.7 +/-    1.16       3.7 +/-    1.16  0.090 / 0.490