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                4.7 +/-    0.53       5.1 +/-    0.53  0.090 / 0.090
G08     79.1           52.0                4.4 +/-    0.56       5.5 +/-    0.56  0.060 / 0.090
G09     178.0          58.5                5.8 +/-    0.35       6.6 +/-    0.35  0.040 / 0.050
G11     140.3          21.2                4.2 +/-    2.60       8.9 +/-    2.60  0.040 / 0.050
G23     158.6          29.6                6.1 +/-    1.88      10.7 +/-    1.88  0.150 / 0.180
G27     45.9           24.6                4.2 +/-    2.11       8.3 +/-    2.11  0.090 / 0.160
G28     244.1          31.0                5.3 +/-    1.73       9.1 +/-    1.73  0.040 / 0.040
G30     309.3          40.7                3.0 +/-    1.37       4.4 +/-    1.37  0.030 / 0.040