PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-10:12:50
G01     112.9          20.9                5.3 +/-    1.23      11.3 +/-    1.23  0.030 / 0.040
G07     95.7           61.3                5.8 +/-    0.60       6.5 +/-    0.60  0.030 / 0.040
G08     44.1           30.4                3.0 +/-    0.75       5.1 +/-    0.75  0.090 / 0.140
G09     175.9          20.9                5.5 +/-    0.43      11.7 +/-    0.43  0.070 / 0.160
G11     100.6          42.9                6.6 +/-    0.61       9.2 +/-    0.61  0.050 / 0.080
G13     314.3          24.7                3.4 +/-    1.43       6.7 +/-    1.43  0.040 / 0.060
G17     203.2          26.8                4.3 +/-    1.49       8.1 +/-    1.49  0.070 / 0.240
G18     87.8           22.6                3.4 +/-    1.47       7.0 +/-    1.47  0.070 / 0.220
G28     291.7          55.1                4.7 +/-    0.98       5.6 +/-    0.98  0.080 / 0.240
G30     354.9          72.7                4.2 +/-    0.73       4.3 +/-    0.73  0.100 / 0.220