PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-06:27:40
G07     345.2          61.7                1.2 +/-    1.60       1.3 +/-    1.60  0.090 / 0.170
G08     86.1           51.9                4.2 +/-    0.54       5.1 +/-    0.54  0.080 / 0.130
G09     183.6          66.5                2.7 +/-    1.41       2.9 +/-    1.41  0.030 / 0.050
G11     140.8          16.7                5.6 +/-    1.10      13.5 +/-    1.10  0.030 / 0.040
G23     157.8          37.0                5.2 +/-    2.70       7.9 +/-    2.70  0.030 / 0.040
G27     49.1           27.3                0.9 +/-    0.77       1.7 +/-    0.77  0.040 / 0.040
G28     242.9          34.9                5.0 +/-    2.08       7.9 +/-    2.08  0.060 / 0.110
G30     306.7          38.9                0.9 +/-    0.85       1.3 +/-    0.85  0.080 / 0.120