PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-00:57:30
G07     326.9          56.1                4.2 +/-    0.55       4.9 +/-    0.55  0.100 / 0.120
G08     103.5          50.1                5.8 +/-    0.51       7.3 +/-    0.51  0.110 / 0.100
G09     180.2          73.8                5.5 +/-    0.95       5.7 +/-    0.95  0.040 / 0.040
G11     151.5          10.6               -0.2 +/-   20.74      -0.4 +/-   20.74  0.050 / 0.050
G23     154.4          46.8                6.0 +/-    0.70       7.8 +/-    0.70  0.260 / 0.790
G27     59.2           33.3                4.7 +/-    1.85       7.7 +/-    1.85  0.250 / 0.760
G28     232.2          17.9                6.8 +/-    2.85      15.8 +/-    2.85  0.170 / 0.370
G30     296.7          29.2                3.6 +/-    1.99       6.4 +/-    1.99  0.100 / 0.280