PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-03:57:50
G07     328.3          56.7                4.5 +/-    0.78       5.3 +/-    0.78  0.130 / 0.130
G08     106.5          50.3                6.2 +/-    0.50       7.8 +/-    0.50  0.100 / 0.110
G09     187.7          76.0                4.1 +/-    0.53       4.2 +/-    0.53  0.040 / 0.040
G11     150.3          10.9                2.3 +/-   15.70       6.3 +/-   15.70  0.040 / 0.040
G23     154.0          45.9                5.1 +/-    0.93       6.7 +/-    0.93  0.150 / 0.360
G27     59.4           33.5                5.7 +/-    1.69       9.3 +/-    1.69  0.120 / 0.330
G28     232.4          18.7                4.9 +/-    1.66      11.1 +/-    1.66  0.040 / 0.040
G30     297.2          30.1                3.9 +/-    1.29       6.8 +/-    1.29  0.030 / 0.040