PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-09:43:00
G07     42.9           69.0                5.8 +/-    0.69       6.2 +/-    0.69  0.030 / 0.030
G08     58.7           47.3                3.9 +/-    0.79       5.1 +/-    0.79  0.030 / 0.030
G09     178.5          42.5                8.4 +/-    1.50      11.8 +/-    1.50  0.120 / 0.130
G11     125.1          32.7                7.3 +/-    0.70      12.0 +/-    0.70  0.130 / 0.190
G18     108.1          13.8                5.0 +/-    2.57      12.9 +/-    2.57  0.060 / 0.110
G23     159.6          10.9                3.8 +/-    4.25      10.4 +/-    4.25  0.060 / 0.110
G27     38.3           12.3                2.3 +/-    1.51       6.0 +/-    1.51  0.120 / 0.440
G28     261.9          43.9                6.0 +/-    1.18       8.3 +/-    1.18  0.120 / 0.460
G30     325.8          55.6                4.7 +/-    0.82       5.6 +/-    0.82  0.210 / 0.290