PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-06:42:30
G03     264.6          68.9                5.7 +/-    1.16       6.1 +/-    1.16  0.240 / 0.230
G09     300.9          16.8                5.2 +/-    1.61      12.3 +/-    1.61  0.240 / 0.250
G14     95.6           16.7                4.5 +/-    1.19      10.8 +/-    1.19  0.110 / 0.270
G16     140.3          53.6                8.2 +/-    0.40      10.0 +/-    0.40  0.110 / 0.350
G22     200.3          62.2                6.9 +/-    0.65       7.7 +/-    0.65  0.140 / 0.130
G23     313.4          42.8                6.3 +/-    0.67       8.7 +/-    0.67  0.140 / 0.140
G26     83.4           55.4                7.7 +/-    0.85       9.1 +/-    0.85  0.030 / 0.040
G31     48.6           25.7                3.2 +/-    2.77       6.1 +/-    2.77  0.040 / 0.050