PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-05:57:40
G07     352.2          64.0                4.0 +/-    0.80       4.4 +/-    0.80  0.060 / 0.070
G08     84.1           52.9                6.9 +/-    0.59       8.4 +/-    0.59  0.070 / 0.080
G09     180.0          61.7                7.3 +/-    1.72       8.1 +/-    1.72  0.030 / 0.040
G11     141.0          20.1                6.1 +/-    2.04      13.5 +/-    2.04  0.030 / 0.050
G23     158.0          30.9                5.9 +/-    1.16      10.1 +/-    1.16  0.060 / 0.110
G27     47.3           26.0                4.2 +/-    1.05       8.0 +/-    1.05  0.070 / 0.130
G28     242.6          30.0                5.1 +/-    1.43       8.9 +/-    1.43  0.050 / 0.110
G30     308.3          40.0                4.2 +/-    1.31       6.0 +/-    1.31  0.050 / 0.110