PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-04:28:00
G07     354.6          64.7                3.7 +/-    0.71       4.0 +/-    0.71  0.060 / 0.100
G08     79.1           52.0                5.7 +/-    0.70       7.0 +/-    0.70  0.050 / 0.100
G09     178.0          58.5                6.6 +/-    1.47       7.5 +/-    1.47  0.040 / 0.040
G11     140.3          21.2                6.0 +/-    1.60      12.9 +/-    1.60  0.050 / 0.050
G23     158.6          29.6                5.3 +/-    1.15       9.4 +/-    1.15  0.080 / 0.240
G27     45.9           24.6                3.8 +/-    1.94       7.5 +/-    1.94  0.090 / 0.170
G28     244.1          31.0                5.6 +/-    1.56       9.6 +/-    1.56  0.050 / 0.110
G30     309.3          40.7                3.5 +/-    1.50       5.0 +/-    1.50  0.060 / 0.090